This is an alternate picking guitar exercise that alternates between the G Major Scale and the C Major Scale. There is also a C# not in either scale but I liked the transition it provided between the two scales. Try at first to keep strict alternate picking and practice this with a metronome. In the video especially for the second part I tend to lean towards some economy picking just because that's what feels right to me. You'll note that I tend to anchor my pinky of my picking hand on the guitar body. Lots of players do this but there is a lot of debate as to what technique is better. I suggest trying them both and see what works best for your individual style of guitar playing.
