Watch the Pop Sixteenths online guitar lesson by Vicki Genfan from 30 Strumming Patterns You MUST Know
I'm using an octave on the 5th and 3rd strings - starting on D, going to E and F. It is a single note line, but I call it a strumming pattern because it's really all about the rhythm and the chicken scratch. Try coming up with your own lines or use a riff or melody from a song you know. You can even try it with full chords. By now, your chicken scratch must be really happening! If it's not, now's a great time to work on getting it clean and strong. Those non-notes are just as important as the notes!