A person who constantly tells people (without a facebook) to get a facebook account (even if they don't plan on talking to that person once they get one.)
Person 1: Hey, do you have a Facebook?
Person 2: No, I don't.
Person 1: You really should get one...
(Person 1 goes on about all the wonderful atributes of Facebook.)
Person 2: Stop being a Facebook evangelist!
The act of wiping the germs off of somebody after coughing/sneezing on them.
It is a rather pointless act, probably wiping even more germs on them, but it gets rid of some of the paranoia.
Person 1: AAAAA-CHHOOOOO!!!!! onto Person 2's arm.
Person 2: Bless you.
(Person 2 is really thinking about how he/she is going to sue Person 1 when they get the swine flu.)
Person 1 wipes the site that they sneezed on saying, "Here let me wipe off the swine flu."