Bear everything that CS and Douglas said in mind but also . . .
. . . your basic scale when you're starting out is C Major.

It's got no sharps and flats and is C-D-E-F-G-A-B-C (doh-re-mi-fa-sol-la-si-doh) or tone-tone-semitone-tone-tone-tone-semitone.

Start on the third fret of the A string.