Basically, it was my birthday the other day and i was saying how i wanted to learn bass. My amazing friends all got together and appeared at my house with a bass and an amp....(i'm really loving them right now). My mate who plays guitar said she'd teach me but i tells me i need to get a lead and a tuner......how does this hole tuning business work? I was wondering if theres anything i can do to teach myself in her absence (shes on holiday now) .... i mean i dont even know the basics. I dont know.....like.....what notes the strings are. How to play ANYTHING (but i'm tre willing to learn). Can anyone explain the basics to me?

When you're too low, the string will be extremely floppy, and completely unplayable. When you're too high, the string will be extremely tight. The string will probably break before you get there. The proper E is an octave below the low E on a guitar, which I suspect your guitarist friend knows, and will help you get right.