Watch the Double Note online guitar lesson by Bill Evans from 30 Sax Licks for Guitar You MUST Know
This is a simple "scalier" type line. It ascends up in a major scale and then goes down. For sure play this in all 12 keys. You can start by playing the first measure and repeating it in 12 keys, then do the same with the 2nd measure. After they feel comfortable to you separately, put them together. When it becomes easy, play the line fast, slow, turn eighth notes into sixteenth notes, etc. Have fun with it!