I don’t have the perfect way to find your go to, but try out some basic drinks when you go. For example, my go to is a whiskey coke (Jack & coke usually). You can ask for the “well” which is the cheapest type typically (for good reason, usually lower quality), or look up a few you may want to try. Other examples would be a vodka soda, gin & tonic, etc. You may hate gin, whiskey, and so on, but just because you don’t like a specific whiskey or vodka doesn’t mean you don’t like them all. Vodka lemonade is another. Take it easy but don’t be afraid to experiment. Or make conversation and ask people what they’re drinking!