While I could use a real smoker and cook these at a very low temperature, I've chosen instead to modify the grill to act the same way - only hotter. First, put the soaked wood twigs/chips into the provided chip receptacle.
  
 
 Step 9:

Set the left half of the grill to High heat, and the right half to Low. Put a pizza stone on the right side and the wood on the left. Now, wait for the smoke to start.