Now that technique that I'm doing right there, is called trills. And basically it's just a series of quick hammer ons and pull offs. So I'll lead you through what I just played.
If you want something to sound really flashy, and a big flourish of notes, then trills is the way to go.
Another way to get trills is to actually use your right hand. So since you're a finger style guitarist, you can do this with your right hand, a la Jeff Beck. So that's some good examples of trills and finger tapping for you.