Actor/adventurer Jack Maxwell learned a lot working in South Boston bars, and one lesson stood out: Enjoy a couple of drinks with a stranger, and the whole world opens up. Those experiences inspired “Booze Traveler,” which follows Maxwell to various countries to quench his curiosity about what people drink, why, and the tales it prompts. In Armenia, Belize, Lithuania, Mongolia, Nepal and elsewhere, Maxwell learns its intoxicating traditions, meets with locals, joins in activities, and even helps with the alcohol-making process. He finds a unique drink, makes friends and shares stories in each spot.