No matter who you are or where you are the fact that you may have a tough to terrible show is always possible. If you sense this is happening and you're just not getting the laughs you expect or have gotten before there are a couple things you can do.
First, by all means , don't panic and speed up. False energy and insincerity is detected by an audience like blood is to a shark. It looks like desperation. See through the absurdity! Realize that it will end in a few minutes and it's NOT the apocalypse.