About three years back, when I was sitting in class at my desk, the girl next to me kept rubbing her leg against my book-bag (which was rested on my leg). I was nervous and tried my best not to look her way, though I saw her staring when I looked from the corner of my eye. She then asked if I had a cellphone charger, she wanted to plug it into my laptop. I replied "No." The whole classroom kept eyeing me and her, even the professor, which made me even more uncomfortable (offline, I hate attention). When the Class was over, the professor called my name when he was handing me my homework. She muttered, "Oohhh so that's your name, not gonna give me your number. Motherf^cker."
About two years before that, some girl inside a store said "Damn, you're sexy." I said thanks and kept walking.
When I was about twelve. Some girls that were around 14-15 walked over to me and my older brother, one of them put their arms around my shoulder and said, "You see that girl over there, she said she thinks you have a big D." My older brother was all like, "Stop! Don't go saying stuff like that to my brother."
Yep, I use to get real nervous. Still do sometimes, depending on the situation and what is being said.