I personally don't like to chat while I'm playing. It kind of distracts me from the game. I mostly like to contact some of the players I know, and ask them how they are. I think one ‘hi’ is enough, and a polite question as to how they are. Anything other than that I think is a lot and unnecessary. Just as it interferes with my game, it may bother them. It is better not to bother the players. Although I have seen a lot of players who vent their anger and are quite uncultured. It's all from person to person.