Part of the reason I brought up "make it easy to say no and make it easy to say yes" is because from time to time I'll have uncomfortable experiences with people who focus more on the yes, almost to the exclusion of the no, and then it feels gross, often like they're either trying to trick me into having a specific sort of interaction with them, or trying to make me feel indebted so I'll feel obligated to have that sort of interaction with them. And luckily I'm resistant enough to manipulation that it doesn't work on me, but it does succeeed in turning my maybe into an oh hell no.
What's interesting is that for some of these people it must be at least somewhat of a self fulfilling prophecy: "nobody would be interested in me of their own free will" → attempts at flirtation rely upon overriding or bypassing the other person's free will → other person sensibly runs away from this → "nobody wants me"
If you're despairing right now because you see yourself reflected in this (and at least one person did the first time I tried to bring it up), I do have something that might help you. I know that "nobody could possibly ever be interested in me" is a remarkably sticky thought, and I know that you can't just will it to go away and immediately develop a sense of self-esteem, but what you can do is when you approach people, you run a little simulation in your mind of what it would be like if someone was capable of being interested in you. What might you say in a theoretical situation where both "yes" and "no" were possibilities? Now try saying that in real life.
I've found it's a lot easier to not be a manipulative person when I have the confidence to believe they might genuinely want to say yes of their own volition without having to be convinced or steered towards it.