Most men try to avoid
touching me, probably because I'm a guy
and they're not comfortable
When they do, it's usually a pat on the back. Since I don't engage in too many team sports, I rarely get a slap on the ass. The bulk of intentional physical contact concerns only the hands, ie., handshakes and high fives. And fisticuffs.
My family is very close and we routinely engage in hugs. Not quick ones. Long ones with heads on shoulders. It's a great way to show affection. I think my dad has hugged me much more than he's whacked my ass as a form of corporal punishment. Of course, he stopped doing that a long, long time ago. That was replaced by the Lecture of DeathTM. I'm not sure which one I would rather have had.
Something to note, however, is that men on ecstacy don't seem to have an anti-touching inhibition, especially after gifts of whiffs of Vicks Vaporub. Hugs all around!