I assume 'you' refers to any reader. To be sure, just for the record: I do think analytically about everything - including people. But I'm not very good at putting myself into other peoples shoes, so I have difficulty modelling them. Thus my analysis of individuals is probably not better then most peoples modelling by experience. But one can still analyse peoples behaviors on average - and that is what I do and what I immediately (mis)read from the OP. How do people react on average? What can I expect over the long run. I do empathize strongly just in case you are wondering. So no, I'm no spider wearing a human face.
If you think about other human beings analytically, and want to signal that to find other people who think about other human beings analytically, there are socially safer signals to use. Cynicism, for example.
That is actually a good recommendation. It doesn't help me because I can't stand the negativity but it gives ideas how to signal. Comments about politics probably also count. Or meta comments about social activity in general. Do you have any positive examples?
You're interested in more than a partner who thinks analytically - they have to be reasonably optimistic, as well. So comments about optimistic philosophies might work; Leibniz, maybe. "Progressive" ideologies are generally fairly optimistic, so politically, you'd want to talk about, say, John Dewey, Ralph Nader, Lester Ward, etc. Nietschze is a mixed bag; his early stuff is quite pessimistic, but his latter works are much more optimistic.
Alternatively, you can find correlations. My experience suggests you might find exactly what you're looking for in Swing dancing partners.
If you have a crush on someone you usually want to find out if they have one on you too. In my opinion outright asking them is often not a good solution, because if they don't have a crush on you yet it decreases the chance of this ever happening if they know you have one. This believe is based on what I read about love psychology. Hovever I don't really want to discuss the option of outright asking them in this thread, therefore I have not elaborated further how I got to this believe.
The alternative to asking them is trying to interpret signals that they might give you. However to know how many signals you need before you should believe that they are in love with you, you would need the prior. I have not been able to find anything about the prior of someone being in love with you. Therefore my Idea is to do a survey in order to find out how likely it is that a person you know has a crush on you. The plan is to ask the person taking the survey how many people they know well enough to possibly have a crush on them and how many people they actually have a crush on.
I have created a Survey for this and would be really happy if you would participate.
The next stepp would be to discuss how certain signals a person can give you raise the probability of them having a crush on you. That part is quite difficult. I think probably the best way would be to check how your friends react to certain situations and what body language they show you and then, if you find out someone has a crush on you, to look up what he did differently from people who are merely your friends. I am currently not in a good position to do this experiment but if someone wants to try or has results about this to share please do so. However I think this part is less important than finding the prior, because most people have at least a general idea about what certain signals mean from personal experience while at least I have no idea at all what the prior might be.