at different points i've cheered up my little brother by:
-putting slippers on my knees and impersonating Danny Devito
-doing a killer seal impression
-performing golden pop hits with dance moves, and switching when lyrics overlapped

i think i just take my mates to get pissed which is a bit depressing really : ( one of them likes Jewish self-deprecation actually, so that's a winner.

what about you? how do you act like a fool and turn someone's frown upside down? i wish i'd thought of this one personally:
http://www.youtube.com/watch?v=-Zzh79J2fC0