dunno if this counts cos the person who took me as a guy this time was not more than 2yrs old!
well, we were standing in line to buy icecream, a man with this kid in front of me and my mother behind. babies like me in general, or they just think my glasses are cool. anyways this kid too was staring at me. i smiled and he smiled back, thought for a moment and blurted out 'uncle' referring to me. okay i'm 18 and the kid had no right to call me uncle, but i was thrilled cos he had gendered me right. then the kid's father turned and saw that i could not possibly be an uncle for the kid, and tried to correct him 'its not uncle son, its..' and he hesitated, obviously trying to figure out whether to refer to me as brother or sister, while looking up and down on me. that was when mom broke in 'its sister. sister looks like a brother, doesn't she' she said to the kid. then mom and the kid's father pestered the kid until he agreed to call me sister. i was just standing there, smiling like a cheshire cat.