The next line in the tune is:
B7 - F#m7b5/B7b9 - Em/B7 - Em/Em7
Step 1: Visualise a B7 at the 7th fret and play this arpeggio:
Step 2: Visualise an Em at the 7th fret and play these notes (remember all D's are sharp):
Play over the chords using these notes as shown. You can use part of the B7 arpeggio or all of it. If you're really clever you can go up it in triplets!
The point is to position the notes right so it sounds good. Here two ways of doing it.