LG Rumour? I need some help navigating?

Hey, i wanted to get my phone to stop beeping everytime i pressed the keys. Do you know how i could do so?
I checked under settings but i cant seem to find anything,

ALSO: if anyone knows how to make it lock automatically that would be fantastic. (it used to but then i had to reset the phone and now i cant get anything back to the way it was )

thanks a bunch