Example 4   The next two notes are on the 4th string. Alternate between the open 4th string and the 4th string at the 2nd fret.

1 -- Pick the open 4th string. Let this note ring for a moment.

2 -- Place your finger on the 4th string at the 2nd fret.

3 -- Pick the 4th string. Let the note ring for a moment.

4 -- Remove your finger from the string.

Play along with the video demonstration.