I'm going to play a harmless joke on someone who forgot to log out of a school computer
Why would you play a joke on them?
Please I know exactly what I'm going to do.
Just be careful not to make this person upset. Sometimes jokes can really offend some people or embarrass them.
It makes me look cool to see my friends reacting to it.
It could also make you appear as a bully. Playing jokes on people just may not be the best way for you to achieve your cool status if i am being honest.