There are two main ways to smoke a glass. One way is to burn wood chips on a heat-safe board, then place an empty glass upside down over the flame. The glass will fill with smoke. You can then pour the cocktail into the glass. You can also purchase cocktail smokers, essentially lids that you fill with wood chips to smoke the interior of the glass. Prepare the cocktail in the glass, then add the smoker and light the wood chips. Cover with the lid and let the smoke billow around the drink. Then remove the lid for a stunning presentation of smoke.