Watch the Rumba Slap online guitar lesson by TrueFire from Play Acoustic Guitar 8: Advanced Techniques
Rumba Slap - Technique #29 is a video guitar lesson presented by Muriel Anderson and is sourced from 50 Right-Hand Techniques You Must Know.
There are lots of techniques used in rumba flamenco music. Here is one easy one. Like the calypso strum, try it to accompany different songs, to give a new flavor to the music.
For more rumba flamenco techniques, check out Tierra Negra's New World Flamenco DVD by TrueFire.