Play with it. The people who play computer games learned input/output. The people building biodata websites learned how servers and ftp worked.

Play with it enough to know what tokens are, why LLMs are bad with calculation math but good at reasoning math, what vector DBs are, etc. It's like a language, it improves with immersion. At the current rate, the people using AI for roleplay are going to be the experts in 3 years.

There's also going to be the crowd that try to slap a LLM on everything, and engineers should be literate enough to explain why it is or is not a solution, instead of defensively screaming 'hype' or 'stochastic parrot'.