It's wrong to say people's names wrong.
Mark and Bobo are friends hanging out at the mall.
Mark wants to get a reaction from Bobo.
Mark tells Bobo a funny joke they both laugh at.
Mark keeps calling Bobo 'boob boob' at the mall and laughing.
Bobo thinks Mark is funny, and they become closer friends than before.
Bobo gets annoyed and stops being Mark's friend.