Probably not the most awesome, but something I have wanted to brag about: at swing dance classes, I've been making an effort to remember people's names. One girl in particular, I forgot her name after getting it twice, but I remembered that it was "eye-something-something". I also remembered that she was Turkish. So I googled for a list of Turkish given names, and per wikipedia, decided she was probably called Aybüke.

I didn't see her for a few weeks, but next time I did, I said "Aybüke, right?", and her reaction was a delightful combination of surprise, pleasedness, and embarassment that she'd forgotten mine.