I have one, she's fine with me and I won't call her a bully or anything but she comments on everyone's looks a lot, calling one of our classmate pregnant bcoz she had belly fat a little and then laughing about it. Claiming that this classmate wears wig bcoz of his haircut. Taking the number of one of my friend and continuously calling her to annoy her (my friend didn't know who is calling her so blocked it). I didn't know about it either until she told me and said that I don't tell my friend about her.
She does it for fun and at first i was cool with it too but I started to get annoyed by her behaviour a little now. She doesn't say all these stuffs in their face but I still feel bad that she's laughing on them for no reason. I only mentioned few of things she did. Maybe I'm overreacting but I feel like venting at this moment, bcoz the phone thing happened today.