Unless you make an effort to be more conscious, your companions will probably dominate your will power and freedom of choice. You will usually be happy or sad, loving or angry, based on the strongly-held sentiments of your family, business colleagues, or closest friends. They merely react to their companions much like puppets, with straw brains, dangling from strings.
Companionship is especially powerful in influencing moods and attitudes.
Generally, a few optimists make the others in their group or family more optimistic. The optimists have a subtle influence, so others become keen to accomplish and achieve success. Friends and families gradually grow more willing to create a happy life experience. Other shared moods, from exasperation to ecstasy, pervade the groups of closely involved people.