Hey @Rod58
Really great to see you out there!
Even though you denied it, you are a performer now 
You actually show confidence when you speak, you have a good public speaking voice and now you felt that it isn’t only making music but also some public speaking! Your set is a story and you need to take time to tell it (like I said here Playing live and nerves - #62 by LievenDV)
I think you’re ready to get back there and bring your vocals along.
I’ve heard you sing and it will surely entertain them! They will be paying more attention to you but now that you know and feel the crowd and venue, you’re up to that!
You could plan it before lunch, that way they can watch your show and have lunch afterwards. during serving or after lunch won’t work that well I think. (after lunch: some peopel finish earlier than others and they’ll have to wait while you do it before lunch, they can enjoy the show and then they’re all there to enjoy lunch and they have little waiting time)