[jmgurgeh]

Talk to your friends if you think they should leave the table, or about how they play, or about what you had or they had in a hand after you're away from the table. All that and more is stuff you do for your friends. When you all make the choice to sit at a table though, poker is poker. If you read hands well and can wait until the turn to checkraise someone you know you're ahead of, your opponent is your opponent, and you should do it.

I guess my general idea is this: Softplaying is totally inappropriate for poker games. If your friends have so little confidence in their abilities, you can help them play better or keep them from sitting down, but checking when you should bet and calling when you should raise make no sense to me.