At the Myrtle Beach Herf (which was my first) I loaded a big ziplock bag full of smokes (no herfador) and when we met up I told everyone if you see something you want just help yourself.
Was it expected of me? NO I did it because I wanted people to have the chance to try something they may not have had the chance to try yet.
A Herf is a gathering of people with at least one common interest in hopes that new friends will be made.
Did I make new friends those couple of days? YOU BET
Just be yourself and you will make new friends. That is what a Herf is all about.
BTW I left the night with more cigars than I came with thanks to some generous gorillas.
Just have fun and don't worry about the other stuff.