Hello, and welcome to Android Forums.
First off, if you're looking for a quick way to "jailbreak" your phone like an iPhone, then you'll be greatly disappointed when your phone does something that you don't want. With all due respect, you sound as if that is what you want. Rooting is WAY more immersive than jailbreaking an iPhone, and with one wrong move, your 510 will be rendered useless. Trust me, I've done that more than one time.
Rooting also presents a bigger security hole that hackers can utilize to do malicious things with your phone. If you do decide to root, then you better have good antivirus software installed before you start doing things.
There are a ton of rooting guides online that one could access, but if you don't have access to a computer, then you're very limited to how you can do it.
~Jonathin