On the **** talking issue. Telling players how to play their cards, or encouraging players to call, or announcing that someone is bluffing or that they "have it" is in the gray area of the "one player to a hand" rule. I don't want to be a rules nazi and I don't want to be overly authoritarian in the way I run the game. Letting stuff like this go to an extent is intentional. However, there are times when it might cross the line. For instance, if someone is making a bluff and their opponent is about to fold but gets talked out of it by the table, that person would have a right to be upset. Same thing goes for almost getting a call when you have the nuts but then having the possible flush or whatever pointed out by people who are not in the hand.
If any one ever feels like that is getting out of hand please just mention it to me and I will let the table know to tone it down and not interfere with a hand they are not in.