Someone who tries to make other people happy and satisfied.
Being a pleaser is usually seen as a good thing, but sometimes people might think it's not good to always try to please others.
Examples:
She is a pleaser because she always tries to make everyone happy.
The little boy is a pleaser because he always shares his toys.
The pleaser made sure everyone had enough to eat at the party.
The pleaser brought extra cookies to share with everyone.
The pleaser even gave his own toy to make his friend happy.
The pleaser always makes sure everyone is having fun at the party.