So I was at denny's with my trans group. We attend denny's regularly after the our meetings, since we attend as a group all of us are "out" to the employees, but they're all totally cool with all of us. A bunch of us tend to hang out outside after we eat and socialize. While we were outside, one of our usual waitresses was talking with us, and started talking about how a lot of us don't look like our license pictures.
So I showed her mine, which still has a picture of me when I was a boy. And she said, "You look a lot better as a girl! You're hot as a girl!!" - Pardon me while my head swells.
A compliment is the best thing you can give a trans person.