1. Add ice to your glass and place the base plate and smoker top on top of the glass.
2. Add a pinch of wood chips into the smoke top.  You don't need much, just enough to cover the screen filter.
3. Light the torch and smoke the wood chips by keeping the flame of the torch about 0.5" above the smoker top with the flame pointed toward the wood chips. You will know when you are in the right place when the glass fills with smoke and all 16 air ports are venting smoke. This takes a little practice.  If you are too close with the torch, it will flame out.  Just relight and try again.  If you are too far away, you will not generate enough heat to smoke the chips.
4. Switch the smoke top with the infusion top. The base plate will keep the smoke in the glass. Pour your cocktail through the infusion top to infuse smoke into your cocktail. You can also swirl the cocktail in the glass to add more smokey flavor. Just remember to blow the smoke out of the glass before you take your first sip.

The smoke top will get hot after repeated use, so make sure you let it cool or use protection before you touch. Never put it back into the wood humidor or iSeries case while still hot.