I'm wondering how touchy-feel-y you are. Reserved. Germ-o-phobic.
By the way, I bathe and wear clean clothes. (That's always a factor for me when making this sort of decision).
So, I wonder, how do you greet new people?
This is in the absence of them making the first move.
I reserve any touching, including handshakes, to people I know or business relationships. Given the headlines of the day with people's lives being cremated for innocent touching that morphs in the accuser's mind to sexual assault I think it is the best policy.