My best friend in primary school was a guy so I remember getting made fun of because it was apparently 'wrong' to hang out with the opposite gender!
I also remember crying in preschool because a group of guys had chased, punched and teased me for being quiet and dressed weirdly.
For most of preschool and primary school I was bullied for and not limited to, my choice in friends, my shyness, the interests I had, how I dressed, my high grades... though it never did get very physical past second grade, it was something I remember spending nights thinking over and whether I should of caved in and changed myself. I didn't since I loved my friends and my collection of Hot Wheels but hey, worth it!
Come high school and its moved on from being called out for being weird to my weight. I've always been rather underweight so people tend to do a 'grab and gawk' at my wrists or tell me that I look anorexic, like skin and bones and so on.
As for all of this, I did get used to most it to the point where I could block out most of what people were saying but it can still combine with other factors like stress and anxiety to make a very huge bundle of asdfghjkl;. On its own though, I'm pretty used to it!