A little humor goes a long way, a lot of humor can fall flat (believe me, I know from many experiments in the field). The answer can’t always be to have none and go with the buttoned up approach. People don’t purchase just a process or a result. They buy what a person they trust sales them. Trust comes from a real place that is sometimes a little outside the lines and a bit messy (yes, the cliches are out in force in this one).
Anyway, remember to lighten up today regardless of what’s on your plate. Tell a few (slightly) inappropriate jokes to get things kicked off.