How do you do vibrato on guitar?
Ideally, vibrato should come from the wrist and not so much from the fingers. The effect is produced by lightly moving your hand back and forth to make the pitch wobble, or using your wrist and fingers to wiggle the string in cyclic hand movements.
Do you bend up or down on guitar?
A good rule of thumb when bending is the low three strings (E, A, D) should bend down towards the floor while the high three strings (G, B, E) should bend upwards towards the ceiling. The two most common string bends are the half-note bend and the whole-note bend.