The basics to finger tapping are easy, Hit hard. For this lesson, the 7's and 8's are to be hammered and plucked with your right index finger or index and middle. The 5 is to be held and plucked with he left index finger. Keep a steady beat. No discharges. Try it slow at first. The second sequene is just for kicks.
Try playing it with overdrive or distortion...sounds better.