The early bird gets the worm, or the cocktail class in this case – No. 9 Park’s intimate beverage tutorials sell out way in advance so get a move on if you want to spend a lovely Sunday afternoon exploring the wide world of booze. Every month, the experts at Barbara Lynch’s award-winning flagship restaurant take a deep dive into a drink-related topic – from the spirit-focused (like agave and whiskey), to the historical (like The Legend of Jerry Thomas and Drinking Through Boston History). Take a gander at the upcoming get-togethers to see what’s in store. Classes, each of which cost $95 before tax, gratuity and processing fees, include all kinds of cocktail-making secrets and snacks in keeping with the theme. You can call 617.742.9991 for details but don’t overthink it or you might miss out.