Humble Up to a Point

I’m not noted for my moxie. Not famous for my wit.
When I tell a joke, I rarely get away with it.
My asides are not whimsical. They’re lacking in their zest.
The laughter they occasion is optional, at best.
When they hold a contest in delivering a line,
I promise you the loving cup never will be mine.
And though it would be wonderful to be life of the party,
I’ll have to make do with being brilliantly arty!

Prompt words are contest, whimsical, optional, moxie and wonderful. (Amazing that three of the five prompts, all taken from different sites, actually rhyme with each other! ) What are the chances?