I’m not outgoing enough to approach a random table and ask to join their team for the night. But if you are I think you would be received well.

In general Baltimore is full of friendly people. I have also been to a number of trivia events here at different bars and my groups would take random additions as long as we weren’t at table limit.

Hell the MC probably wouldn’t mind making an announcement to see if any teams had space/ are willing to take you.