Lets not worry too much about getting things perfect. Mistakes add so much more character to the personality. So lets not laugh too hard at the girl who keeps walking into walls and mirrors or the wheezing asthmatic who walked too fast. She's not too bothered about looking silly in public. That is just how she is. If you lighten up, you could learn how good it feels to smile to yourself once in a while.
And, going semi off topic, I have an early video of Jason Mraz before he got really popular, singing one of my favourite songs. Back then, it [was] all about the wordplay. His scat singing always seems spontaneous and natural without having to try too much.