I think the word we're all looking for is "intimidation". Who are you "intimidated" by?
Anyways, I'm thinking I agree with Cow, you get out here bowl the best you can compare scores at the end & see where ur at. Even though I havent competed as much as I wouldve liked over the last few years, I've seen enough "bad" bowlers bowl good games, & enough "good" bowlers bowl bad games to realise arent many people around good enough to warrant a "natural intimidation" as such.
A wise man once told me about the "One Frame Game". Basically, you step up to the approach & throw the best frame you can. The previous frame doesnt matter, the next frame doesnt matter, just the one that you're up there bowling right now. Theoretically, if you're focusing on individual frames, I doubt you'll even have time for the person you're bowling against.
Of course, there's also no need to be rude about it, I mean, if you're not out there to have fun whilst you're trying to win, maybe you shouldnt be out there at all.