Play A minor pentatonic ascending in one octave from 4th string 7th fret to the 1st string 5th fret and back down again (5th position) and repeat a few times to get the sound and even rhythm into your head.
Now play the same scale but play the 5 note (E) in the 7th position and complete the scale from there to the tonic on the 2nd string 10th fret, then go back down.
If you're not familiar with the major scale (this is a great way to become familiar with it) use one you are familiar with, if you don't know any then start with the pentatonic minor. If you're not up with the pentatonic minor remember, Google is your friend.