I have been out in the trans community for a long, long time. Usually a simple greeting, or a handshake at most seems to suffice between strangers. Sometimes a hug, but only if I had known the person previously (online or such) before meeting them in person.
Hugs always seemed problematic to me. Some people have been abused and have an aversion to being touched by strangers, so I never assume a hug is welcome by a stranger. Especially true given the era in which I grew up in (the era of child molestation, sexual harassment, etc. in the news) where touch was considered a bad thing and frowned upon.
