Fingerpicking patterns
Here are examples of fingerpicking patterns for the guitar, including tabs and sound. In general, the thumb is used for the three lowest (thickest) strings and index, long and ring fingers are used for the string 3, 2 and 1. The little finger is normally not involved in fingerpicking.
Pattern 1
This is a good starter pattern. This is a very simple, but effective way to create a finger pattern. It's also a good method for training the thumb on 4-6 strings and the fingers on strings 1-3. Practice this pattern on open strings until you can play it without looking at your right hand.
Exercise on pattern
with open strings:
Musical example with chords:

The first notes in all parts are accented. This is a fundamental pattern and it's a good idea to try it on other chord progressions until you can execute it in your sleep.
Pattern 2
This is similar to the first pattern. This is somewhat more difficult since you are not going in the same direction.
Exercise on pattern
with open strings:
Musical example with chords:

Also, this pattern is a good idea to drill by using it for other chord progressions.
Pattern 3
This pattern increases complexity somewhat, but without being too demanding.
Exercise on pattern
with open strings:
Musical example with chords:

It's possible to include chords with the root on the fourth string as well.
Pattern 4
A new concept is introduced in this fingerpicking pattern: two notes played simultaneously. Two notes are played in the beginning of each part. This creates a richer sound with the blend of bass and treble.
Exercise on pattern
with open strings:
Musical example with chords:

In the open strings exercise introduction, the 6th string is not included, but as shown in the musical example it can be.
Pattern 5
This last acoustic guitar fingerpicking example is inspired by the Bob Dylan song "Boots Of Spanish Leather".

The first notes in most of the bars are accented.
Pattern 6
In this example a plectrum is used and also an electric guitar. It's advisable to use a plectrum here since fingerpicking on the lowest three or four strings can result in a lot of scraping sound.
Exercise on pattern
with open strings:
Musical example with chords:

As always, it can be beneficial to exercise this pattern with other progressions.
Pattern 7
A plectrum is used again, and the pattern is based on triad shapes constructed on the 3rd, 4th and 5th strings.
Exercise on pattern
with open strings:
Musical example with chords:

A final word: There are no rules concerning fingerpicking. What sounds good is always right. To become better, a crucial step is, as mentioned above, to learn to play without looking at the right hand.
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