LOL!-That's why you pay the bass teacher big bucks!;-)

But seriously, because it's tuned like a guitar, guitar players pick up an electric bass and play it like a guitar. That works, but bass is a different instrument with it's own technique, and if you want that "Real" bass sound, you have to use open note scales, the ones in the "How to Play Bass" books and the proper plucking technique. It's those open strings that give you the right sound.

You can probably find some videos on youtube--but beware, technique varies from player to player, and everyone thinks their way is right;-)