First lit the alcohol (try sambuca or any suggestion from the bartender) after it's lit you take you hand over it and make sure the fire ends. Inhale fumes. Now you drink it up. There will be some drops left in the glass. These you pour on to the little pit on the bottom of the shot glass. These few drops, sniff them hard. I don't know if the effect will be stronger with sniff but it's more fun to drink in a bar.
