I've never asked a guy on a date, but I have invited a ton of guys for coffee or a movie as friends. I just never had an attraction strong enough to ask a guy out myself - when I do, I will totally invite him to a romantic date.
I asked guys out guys I met through online apps - does it count? But this is different, as there is a clear indication of what each party is looking for.
By the way, men aren't the only ones who don't get signals. I'm a woman, and sometimes I'm completely oblivious to a man being interested in me. There's a 50/50 chance I'd get it, so the best thing to do is to approach me and tell me how you feel, lol.