Analyze this position.
Basically play yourself, and notate the moves.
Play well for both sides.
Set this position up on a chess board. Make sure you have a piece of paper and a sharpened pencil (or pen).
Sit with the White or Black pieces in front of you (when in doubt, have White in front of you, and never sit from the "side" of a chess board).
Your moves don't have to be perfect. Just play it out, write down the moves, and enjoy the fact that you are using one of the oldest methods of chess study.
Analysis (because "I play chess against myself" sounds crazy!).