The menu test
Back when I used to work in restaurants every time I got a new job or every time there was a new chef I'd have to learn the menu. This usually culminated in the dreaded “menu test”.
Different places had different approaches. Some places would send you home with the menu. They'd tell you to buy a book. This was before Google and the internet. The book was there to help you figure out what all these fancy kinds of food were from different parts of the world. The different sauces, starches, meats - you get the idea.
I'd have to read the book and understand what flavors were and the ingredients and the whatnots. Then the job would be to memorize the menu. Then, after a week in the job, boom - menu test. If you passed, congratulations, keep the job. Failure? Adios immediately.
Other places would require that before you could work as a server, to work every job in the restaurant. You'd make it like Drake and start from the bottom with a shift as the dishwasher, then bartender, then busboy. You'd also spend a couple of shifts behind the line pissing off the cooks, attempting to stay out of the way while watching food get cooked.
Then, after a couple of shifts shadowing a senior server? Menus test.
Finally the third kind of approach restaurants would take to prepare you for menu test was more delicious. They would cook up a whole bunch of food and you taste it. Some places when they were preparing a new menu with a new chef would basically have a big party for the all the staff and all the servers would sit down and eat together and people would have samples of all the dishes.
Or, if you were a new server in a restaurant that behave this way, they would encourage you to eat there more and more and more as preparation for the menu test. Have you tried this? Have you tried that? Have you tried this yet? Eventually, once you've tasted everything and could actually experience it and ask questions, then you would be tested on your knowledge.
Some of these approaches are less expensive than others. I've always believed that you get what you pay for. How would you best learn a new menu?
Learning new behaviors and ways of being in the world is a lot like this. You can read about it you can watch it but until you try things out you don't actually know what you're getting into.