I need help with choreographing my scene in a kid's Christmas play!?

I am in this childrens Christmas play and i am the opening scene. I come onto the stage as a janitor sweeping and there is a fly noise and i try to swat the fly away but it wont go away. then it turns into an epic fight between the fly and me. i have a broom so i can use that in my part. the scene is to music but i have no idea how i should fight a fly and be funny! does anyone have any cleaver ideas?