Hey all, i just had a quick question about keeping a straight face. Sometimes it's when someone is being immature in class (Funny....but immature in that you feel like you shouldn't be laughing) or when you crack a joke and don't want that nervous laughing to come over you, what do you all suggest I do to keep a straight face? I can usually manage it, but it can come off pretty bad when i can't and just bust out laughing in the middle of class or whatever....Any help would be great. Thanks