I looked through the first few pages of the forum and saw that this game hadn't started over here yet. I'm sure you've all seen this elsewhere. Each character starts with 10 points and you get a + and a - per hour or so. There aren't as many recurring characters on the show, so I picked some random ones from different seasons:

Ted 10
Stella 10
Wendy the Waitress 10
Robin 10
Lily 10
Barney 10
Carl 10
Marshall 10
Sven 10
Tony 10
Victoria 10
Sandy 10
Brad 10
Stuart 10
Claudia 10