Two ways of playing the Pentatonic scale using Tapping, the first way is to play the Pentatonic scale as a three notes per scale pattern and then adding one note as Tapping, using this way you play a new pattern on every other string.

The other way is to play the good old Pentatonic pattern you may know using two notes per string, then the cool thing is that the pattern you would play on every other string, in this case the A, G and high E string you add to the same string using a two note Tapping pattern to the same string you play the classic Pentatonic scale pattern