In most fingerpicking styles, the fingernails strike the strings to make a strong clear sound. For best results, let the fingernails of your right hand grow to about 1/16" (1 millimeter) clear of the fingertip. The thumb nail should be longer. Fingernails should be shaped using a nail file (emery board) so that they have a rounded edge and flow smoothly off the string after it has been picked. However, many Blues players prefer to use just the skin of the fingers, and often snap the strings against the fretboard as well. Experiment with both ways of playing and decide which works best for you.
The right hand fingers are named using the following fingering symbols.
The little finger is not used in fingerpicking.
Start with your fingers not touching the strings, then pick the first string with your index finger (i) with an upward motion (do not pull the string outwards). Your finger should move from the first finger joint below the knuckle as shown in the following diagram.
The sound is produced by the fingertip and the nail striking the string simultaneously. Move only your fingers, not your hand. The i, m and a fingers usually pick the 1st, 2nd and 3rd strings.
The best way of learning how to pick with the fingers is to practice with open strings as shown in the following example. Rest the thumb on the 6th string and remember that only the individual fingers should move as you pick a note, not the whole hand.