I was on a date with a 29-year-old girl.
I turn 20 in April.
I approached her at the skytrain station. She was with some friends, taking pictures in front of this exhibit type of thing. Didn't know her age, I just thought she was cute. If you like referring to any sort of scale for measuring female hotness, she was definitely at the upper end of it.
So I walked up and said something along the lines of "Hi. I just saw you as I was walking by here. You're really cute, what's your name?"