Watch the Oh Snap online guitar lesson by Rich Maloof from 50 Acoustic Guitar Licks You MUST Know

Pulling the strings on an acoustic up from below lends a fat 'n fretty snap when they smack back down on the fingerboard. In combination with a hammer-on, a good snap can be used to great affect in a pert vamp like the one heard here. The technique works on any string but you'll get the most bang for the buck on the lower, wound strings.