Well, Im a complete newbie, and this place seems to deal with issues above my skill, but I'll ask this anyway. I've only been playing for a week and a friend of mine has been teaching me the basics, even though she's not much of a bassplayer. She tells me that its ok to hit the string above the one Im playing, if I keep my thumb on it. Now, that makes it pretty easy to play, but the thing is, I can hear the string above even though I keep my thumb on it, so maybe that isnt so good? Is that a good method to learn, or should I try to play in some other way?