I'm a rather socially active guy in my early thirties. I meet many interesting women at meetups, speaking clubs, speed dating events and such. When I want to get to know them better, I will usually suggest doing some activity together, e.g. going to a museum, playing boardgames, or simply dining at a cafe. However, I've found out that their "sure, sounds fun, we can do that sometime" doesn't necessarily mean anything. Sometimes I suggest a specific date and she preliminarily agrees, sometimes we decide to discuss it later over messages after we check our schedules. The success rate is definitely higher when we decide on a time right away. It seems like in many cases they simply can't say "no" right away, either out of politeness or shyness or some other reason, and instead prefer to come up with some excuse later or stop responding to messages altogether.
Now, I appreciate them trying not to hurt my feelings, but honestly I would much rather prefer a straightforward "no". Sure, it would sting a little bit, but that way I could immediately move on to other plans instead of hoping for something and leaving holes in my schedule. I also fully realize that due to traditional gender roles and upbringing (I'm living in Russia, where the society is still deeply patriarchal) women might find it incredibly difficult to say "no" to men. In fact, many of them probably had a traumatic experience where a guy acted creepy and stalkerish after being rejected openly.
So basically, I believe I understand the roots of this problem and I'm at peace with the fact that it will always be a part of my life to some extent. With that said, is there anything I can do to minimize the chance of women saying things they don't mean in situations like that?