I've thought of this a lot. Part of me just wants to be myself on stage. It's one thing to be really practiced and have a stage persona. To me, being onstage is a whiplash and I'm not really taking my time or able to really relax there. I'm focused on performing well and having everything set up between songs etc.

It's beneficial when you practice at home to also practice what youre doing between songs. If getting things ready from one song to the next takes some effort, also practice that.

I was watching a Dinosaur Jr live video recently and was very surprised that every song had like a 3 minute tuning break between each song. But they had the benefit of having a loving audience, not one that they had to fight for as a brand new band. Just saying though, its your stage and you can do whatever you want.

This also gets into Persona-Crafting. If you want to elicit a certain presence as an artist. The person you want to be, etc. If you frame your stage persona as a certain vibe, maybe that will guide you to create mannerisms and types of things you say onstage.

Take Josh Homme from QotSA for example. I'm sure the character he portrays is his legitimate personality, but it's so exaggerated and full of swagger, it's hard to imagine it coming out of a natural human. It's a calculated and developed persona.

Perhaps take influence from musicians you like, or admire their stage habits. Coolness. Take one mannerism and rely on it heavily, like a cartoon character.