SLIDE GUITAR BASICS
1 Wear your slide on your third finger
Use a different finger if you prefer, but the third finger is easiest to control and you can fret notes higher or lower than the slide if you need to.
2 Mute the strings for a cleaner sound
Tame excess string noise and make slide lines sound clear by keeping your first and second fingers in contact with the strings behind the slide.
3 Aim to play directly over the frets
Play in tune by positioning your slide directly over the frets, not above or below them where you usually place your fretting fingers.
4 Float with your slide... or don’t!
For a smooth, floating sound, rest the slide on the string without pressing down. For a more aggressive sound press down with your slide, Derek Trucks style.