that's hard because you can't really make someone be happy for you. hmmmm *scratches head* well if they are acting out then i would say give them a little talk about how important this day is to you and that you want them to be apart of it, BUT if they continue to act shady or not show you love and support, then they can find something eles to do on that day, perhaps a trip to the zoo would be a good suggestion, lol just kidding, don't say that