I. Close your eyes and just listen.
II. Blink your eyes to the rhythm of the piece.
III. Watch just one performer’s eyes (or as near them as possible).
IV. Watch just one performer’s feet.
V. Watch just one performer’s hands.
VI. Look for a window or an opening in one wall, and stare at it.
VII. Watch your neighbour through the duration of the performance.
Do this in any order during the concert, performing each task at least once for the duration of one piece, and then repeating tasks as you wish.