[Klissineopar]

Generally, the rule is to be courteous to those groups around you. But, I also believe it depends on the circumstances. If my group is on the tee box or the fairway near a group on a putting green, there is no reason for us to be loud. In such a situation, I will be particularly mindful of the groups around me and be courteous. If, however, my group is on the green near a tee box, I will still try to be courteous, but I am not as concerned with the group on the tee. If a buddy hits in a 50-ft chip or something else of note, I will have no problem with a joyous "way to go". In this situation, it is probably best for those on the tee box to wait for an opportune time to hit their drive (i.e. right after someone on the nearby green putted or when they are still lining the putt). Otherwise, they risk being disrupted by a player who just made -- or even barely missed -- a long putt.