It's inappropriate to brag about yourself too much to others.
Kenny is on the high school baseball team and hit three home runs during the game.
Kenny wants to tell his friends about his performance.
Kenny tells his friends about his home runs once, when he sees them after the game.
Kenny tells his friends about his home runs every day of the week.
Kenny's friends will think Kenny is a very good player.
Kenny's friends will become annoyed with Kenny and think he brags too much.