Over the 3 years I have been part-time and then eventually full-time, the one thing I developed that has helped the most is a thick skin. People will stare, people will giggle or snicker, or look at you then point you out to their friends. Whatever. You don't know them, they don't know you. f--- 'em. They don't have a problem with you personally, they have a problem with their opinion about TSes in general. and remember, their problem with us is not your problem to solve. You're happy with the way you present yourself, they are not. Oh well, they can get over it.
I was on my way to work one saturday and I had a tanktop on, windows down, enjoying the ride. There was a motorcycle next to me. Normally I don't worry about other people, they're too wrapped up in their own life to care about the next car over. Well, the guy sitting behind the driver of the motorcycle looked over and saw me and did a double-take. I knew I was read, but I didn't care. So I watched him say something to the driver of the motorcycle and sure enough, they slowed down a little to get a better view (they were still ahead of me tho) and when they both turned around to look at me I was sitting there waiting...with middle finger extended. >