Daisy that's a great idea except for when ignoring the morons encourages them
Gotta love NYC.
Just perfect your look of pure disgust and evil and the phrase "don't touch me"
I really don't mind being talked to. That is no big deal. Just nod and keep walking. People generally won't follow you and if they do a few sentences and a "sorry, I'm not interested" can end the situation in a positive way and with no hard feelings. I mind touching or asking stupid questions.
"Why aren't you smiling?"
I get that like every freakin day! Hellooooo this is New York, when was the last time you saw someone sane walk around smiling? Is it my responsibility to smile at you? Was there a memo that I missed? I will never ever smile at someone who asks me this stupid question.