Just make sure your scene-stealing feats of Frumpery are in service of the story, and you'll do great.
When I was in HS, I was always cast as older roles (being either an old soul or just plain uglier than the fresh-faced kids around me who were cast as romantic leads) and one such role that I'll never forget was Sir Toby in TWELFTH NIGHT. The first night of our run, our director wandered in to the wings before Act I Scene iii, Toby and Andrew's first debaucherous adventure. We were surprised he wasn't watching the performance, but that he'd come backstage and paid us a visit. He simply said, right before we went out: "Steal this ****ing show."
It turns out, for that production and for those roles, it was exactly the direction we needed, as it was an incredibly successful run that week. And probably the most satisfying performance I've ever given.
So have fun and serve the story. It's a fantastic show.
Words don't deserve that kind of malarkey. They're innocent, neutral, precise, standing for this, describing that, meaning the other, so if you look after them you can build bridges across incomprehension and chaos. But when they get their corners knocked off, they're no good anymore…I don't think writers are sacred, but words are. They deserve respect. If you get the right ones in the right order, you can nudge the world a little.