Drink every time you hit an unskippable cut scene. Drink whenever Dinklebot has to hack something. Drink whenever you get nothing in Crucible. Drink twice if your entire team gets nothing in Crucible. Drink 3 times if the last place guy in Crucible gets an exotic. Drink whenever you get an exotic drop that you just bought from Xur. Drink whenever a legendary engram turns into ascendent materials. A mote of light, or a strange coin.