A curved line and the letter H indicates a hammer. The first note is played but the second note is produced by hammering on the left hand finger which plays the second note.
A curved line and the letter P indicates a pull-off. The first note is played but the second note is produced by pulling off the finger which is playing the first note.
The letter S and a straight line represents a slide. If the line comes from below the number, slide from a lower fret but if the line is above the number, slide from a higher fret. The third example on the right shows the desired fret to slide from.
The letter B and a curved line represents a bend. The note is played by the left hand finger which bends the string (from the note indicated in the tab).
A curved line on the top left hand side of the number and the letter R will indicate a release bend. The technique involves bending the note indicated with the left hand, plucking the string while bent, then returning the string to its normal position. The release bend creates a drop in pitch from a higher note to a lower note.
A wavy line shown above the tablature indicates when vibrato is used. Vibrato is controlled with the left hand finger which is fretting the note. As the finger frets the note, move the string rapidly back and forth in the direction of the adjacent strings.
The symbol is used in the tablature to show two notes are sustained together when using a double-note lick. This time a note is bent, and while the note is sustaining, another note is played with a different finger, causing both notes to ring together.