Thread of assorted guitar techniques

[SammieWammie]

Hey everybody, can you all post what you consider to be really great guitar specific techniques. Miscellaneous things (not just bends or vibrato) that aren't necessarily standard, but are a good thing to pull off. Here are a few of ones I use:

Guitar drumming: acoustic guitar only, works on open tunings best, drum rhythms on the strings near the bridge for chords and various parts of the body for different sounds. Got this off John Butler.

Slap harmonics: finger a chord (a basic minor 7 barre chord works well because it's only over one fret), slap 1 finger across the strings 12 frets above and you get the whole chord in harmonics. Got this of Tuck Andress.

Walking comp: jazz thing here, walking bassline with the thumb or pick, chords with the fingers, quite handy in a duo.

That's just 3, what have you got?

[bobby d]

I would gather no one is responding because there are too many that have already been talked about.

How about scraping the picking along the string percussively? I just saw a Blues guitarist do this effectively enough to make the crowd go wild.

Retuning the guitar while playing a song. Adrian Legg does it.

Lenny Breau or Chet Atkins style harmonics. I'm sure most everyone has seen this done on youtube by Tommy emmanuel or countless others.

[cosmic gumbo]

Playing slide by moving the guitar along a mic stand.