Sam~ You get on his computer and play games ,watch funny videos and Sometimes you leaving a small clip of a scary face screaming so when he opens it, it will go off and scare him you laugh but you make it up to him

Dean~Get his rock or classic rock music and sing along and dance to it while eating one of his pies but you make him another one

Cas~ you found another trench coat and you go around the bunker acting like Cas and one time he caught you had some explanation to do