Learning basic Japanese for solo travel in Nagoya?

Hey fellow travelers! I'm gearing up for a solo trip to Nagoya this November to catch the beautiful autumn leaves. I've heard it's a bit less English-friendly than other cities, so I want to learn some essential Japanese phrases to get by comfortably. Any tips on mastering basic greetings, ordering food, and asking for directions in Japanese? Also, any language exchange meetups or cultural classes in Nagoya where I can practice my skills and meet locals? Thanks a bunch!