There are two primary positive reasons why we do things for people.  One, we are trying to win them over.  We are doing whatever we can to get them to notice us.  We are either trying to get something from them or just get closer to them by buying their affection.  Two, we are doing it because we love them.  We don’t expect anything in return.  The main difference between the two is based on how we see ourselves in the relationship.