It's annoying when people gloat about themselves.
Robert is on the playground at recess and his two of his classmates are picking teams for a kickball match.
Robert wants the other kids to know how talented and athletic he is.
Robert remains silent and displays his athletic prowess by trying hard during the kickball game.
Robert loudly brags to the other kids about how he's the best athlete in the whole school.
The other children are impressed with Robert's skills and form a positive impression of him.
The other kids find Robert's gloating to be arrogant and off-putting, and he is picked last.