I have seen grown men giggle like teen girls and teen girls slap people, when someone says that they can mate them in two moves
When someone says "CHECK" excitedly.
rating is a good indicator
@mansimum rating can be false, like for example
@wolf_gamer2's rating
@mansimum Come on man I was looking for jokes
When they fall for the Scholars' or Fool's Mate.
When they call the knight 'horse'.