I didn't want you to think that I would think that you were the sort of woman who would engage in coitus simply because I cooked you a Szechuan dinner.
In short, it means that rather than passively sitting back and simply letting someone else talk while waiting for your chance to speak, you engage in the conversation without words.
This is the process of truly engaging with the text instead of passively just running your eyes over it, which will help you retain a lot more of what you read.
Active listening is when you are actively engaged, so you might be asking questions; you might be nodding; you might be making listening sounds, uh huh, uh huh, hmm...that's interesting.