I have basically not bothered much about it unless there's enough audience looking my way. most of the time, they'd just be talking to each other and I'd just have to quiet them down, telling one or two that they need to find a seat and be seated. Also, once in a while, telling someone that he/she cannot sit on the desk. I am very firm about sitting on the desk. Of course, sometimes (when I was new to the school), they'd try, "Our teacher lets us". Then, I'd just say "(I don't" They'd test you with everything under the sun. One time - this was last year, one was just repeating this line "How do you get to be so beautiful?" though not with the tone of harassing. I just ignored him at first and then just called his last name with the tone of a teacher - that day, I happened to remember his name w/o looking at the paper. (From the look of his eyes browsing on me when I went near him to get his attendance, I kind of sensed what's happening and so I guess, I was alert.) He stopped for a little bit but then started again as if he was trying to get my attention that he found me attractive. But a few of his friends turned to him and said, "****, it's sexual harassment" and so he stopped. In fact, in some classes, some kids (male) would just check me out. I notice when it's happening with more than one or two kids and for a prolong period.