1. Use of the word "baby" after every word written to one's significant other.
2. Making every status update about one's bf or gf.
3. Having full blown conversations under comments on a wall post, when you damn well know, you could have just picked up the phone and talked to them if you loved them so much.
4. Posting picutres of the two of you, even though they are blurry/you both look awful, just to prove you actually are in a realtionship that exists beyond your fb wall.
B-"Baby, not much baby. Want to get together?"
A-"Sure baby, sounds good. I'll call you later then baby."
B-"Love you baby <3"
A-''Baby see you in an hour baby."
C- "Enough with the FB PDA you two. Get a room."
Keep it to text messages, phone calls or better yet a hand written note. The rest of us don't want to gag on your lovey dovey chatter.