What do you think about different people's moods ? What can change their moods every day?

Tell me ur opinion ^_^What do you think about different people's moods ? What can change their moods every day?everyone is different! and unique in there own way! some people are just happy all the time some people get sad easily or mad you just have to learn how to deal with all kinds of people. Changing moods there is to be a reaason to be acting the way you are unless your bipolar than that's something different.What do you think about different people's moods ? What can change their moods every day?i thik mood depends on things tat happen around a person for few mins after he/she wake up ..