2 props for asking, it seems like little to no guys responded so here goes.

I ALWAYS notice a girls boobs in a hug… and before the hug. Did I mention I’m a guy? Seriously, not all guys are as horny as all others so on a spectrum I am probably pretty high up there. So to some extent this is just me. But I notice a girls small boobs or large don’t anybody say “My boobs don’t effect my hugs. Do you hug somebody when your elbows connect and not farther. I consider a regular hug to be when shoulders connect which for some girls I have hugged means we are both leaning forward to get around her massive boobs. This is awkward, just fyi. Guys will tell you it’s not cause they want to smoosh up against your boobs (and some because they honestly aren’t thinking about it) but it’s awkward for me because I am a Christian guy and I don’t want to think about girls that way. Point is one armed side hugs are the way to go and I know girls who exclusively give them.
I’m not gonna talk about any other culture but in America, we WAY overly sexualize the boobs. There are tribes in Africa where they never cover their boobs, it is completely normal to be topless it is not special or exceptional and warrants no extra attention. Fun fact, guys have sensitive chests and nipples too (don’t get side tracked by that I’m just making the point that it’s not even biologically a sensitive area for girls and not guys even if girls are more sensitive there). The point is, if you are in America, the guys you hug are NOT from some strange culture. They come from a culture where the more boobs, the better the sales. Guys who don’t notice your boobs the moment they look at you are in such a minority I don’t think you should worry about them too much. They’ll figure it out they are doin’ there own thing anyway.

That being said, it doesn’t mean that every hug involves boobs and therefore has a sexual element. There are perverts, and if you understand the demand for porn in this country you will realize there is a shocking offensive number of guys who are probably thinking of you as a sexual object and your personality as an obstacle. That being said not all guys who look at porn are perverts who think of you that way. I myself have struggle with a porn addiction even though I am a christian and think it is wrong to look at a woman that way who I am not married to (I’m not married). Point is, that I would classify my perspective on this as struggling to be respectful, and I want you readers to know it when you read my opinion about different types of hugs.

Regular hugs: this means to me, arms around a girls neck because I am usually taller than her. This also gives her control of the boob squeezing aspect of the hug because my job in this hug is to not brake her neck. I don’t think this is wrong or bad, I call this the regular hug because it seems to me to be the most natural. 

Side hug: this is the safest hug. I know girls who swear by this hug and all their guy friends no that that is all you get. I believe this has been refereed to as the awkward side but, but I go for this hug with my large-chested exgirlfriend cause it is the least awkward for us. Many of my friends who are girls understand something about my perspective of these things and go for the side hug for whatever reason. I don’t think it is more awkward than I regular hug unless in your specific group of friends you always hug that way or always have in which case braking out of the mold is always awkward and some of us just like to do is so we are not in the mold. 

Sexy hug: When a girl who is shorter than me hugs around my neck putting my arms under her armpits the boobs are very involved. For one thing if there is almost no squeezing she still has to stand right up against me for this to be natural at all (that is no leaning forward to go easy on the boobs). If there is squeezing the girl goes from right up against a guy to pulling herself up or, he is squeezing her boobs directly into his chest. For large chested girls this arms are right there and are also smothered in boob. I knew a group of friends where this was a pretty normal hug, they were quite secular and were glad to laugh and joke about boobs and their involvement, so as far as this was not more sexual than was normal between friends in this group, it was not awkward or flirting or anything, just fun to do. As with any interaction between two people it could be taken the wrong way, or mean much more to two people who are attracted to each other than to two people who aren’t, even though it may seem the same if you are an on looker. As far as I can tell this is not different from other interactions between friends that are normal for that group. However, it is quite note worthy that as this group fell apart (people moved on to college and such) and I introduced guys from this group to the girls I mention who favor the side hug and have similar ideas of respect to my own, these guys found themselves attracted to these girls in different way than they had before. Before I go on, you must understand they often went to clubs where people did all manner of drugs and did all manner of things just for pleasure. They avoided the sexual side of this pleasure seeking because they are quite intelligent and concerns about disease and pregnancy were never outside the things that naturally occurred to them about a situation. So they would say things like the following, “I have never been around girls before who had self-respect.” There is much more to their perceptions than the types of hugs that were involved in these groups, but as a result of a different perspective on how guys and girls interact they found these girls very attractive. Instead of just being attracted to their looks they were also very attracted to personality traits. Instead of being attracted to the experience of being around someone primarily for how fun it was they were attracted to being around someone primarily for how purposeful she was.

Again, this is all just from my perspective and bias. I see that bias, but I don’t pretend to write to you from outside of it. I am not someone else and I don’t believe it pretending that I am not biased about what I am saying. Further more, there are plenty other hugs and ways of looking at them and overlap between them etc. Still further I am a very serious person and take these things very seriously and there are plenty of people who would never bother to consider what type of hug is appropriate. I respect them and even appreciate their carefree spontaneity. 

I hope you enjoyed reading this and don’t feel that I have criticized you personally. That is not my intention no matter who you are or how you hug. These are just my opinions that I would probably be better off keeping to myself but this is a blog and that is not what we do here.