Don`t let your day be ruined by the salesperson, evangelist or busybody who darkens your door. This person may have something to gain by your discomfort, and may only be waiting for a chance to ask for something you`d rather not give. The common wisdom or the obvious answer isn`t the right one. Eat when you are hungry and not for social reasons or you`re likely to end up with a nasty bellyache. Gossip often travels faster than logic -- be wary of tales you are told. A friend may be angry with you over a slight you hadn`t realized you`d committed.