Use good manners and treat others with respect, even if they are everyday contacts who you do not know personally. This includes store clerks, gas station attendants, salespeople and just about anyone else you might encounter in your daily routine. If you treat others with respect, they are more likely to respond in the same way. If you end up having a problem, they will be more likely to go out of their way to help you if you use good manners instead of getting upset, argumentative and confrontational. Using good manners with a stranger can brighten the other person's day, even with a simple act like holding a door open or giving up your seat on a crowded train.