Normally I explain the reasons why I don't use facebook or skype in a few
sentences; I try to put my words carfully so no facebook user in the group
feels attacked.
If a girl really doesn't want to listen or calls me a weirdo because I don't
do something bad many people do - well, then I'm lucky I got rid of this
person!
A real cool girl will be impressed because I don't use facebook ;)
All the others... I can live without them.
Same thing with smoking or alcohol... if this is the basis and precondition
for my new friendship I can gladly refuse.
But yeah I think we feel the actual power of facebook. Kind of a social
"pull" - I don't know the right expression in english.