I'm very much of the "make it dark, make it grim, make it tough", but then, for the love of God, tell a joke.
Joss WhedonI could not conceive that [fans] actually wanted me to sign something. It took a long time for me to figure out (a) just say 'Thank you' and sign the thing, and (b) smile in the picture, because if you try to just half-smile you're going to look constipated.
Joss Whedon