Object to the up post's with evidence. Sometimes you may not post evidence when its not crucial , (Like person A in the example) for example Person A: OBJECTION! The defendant was eating potatoes and NOT mashed potatoes! , You thought so for that you have seen the potatoes before BECAUSE YOU WERE IN THE KITCHEN AND NOT IN THE SCENE OF CRIME! Person B : OBJECTION! The accused has pictures at the scene of crime 1 minutes before murder! I'll go first - OBJECTION! The defendant was not a boy but a girl , a "tom-girl" . You were confused by her hat and clothing so you PINNED THE CRIME ON HER!