Would you use something like this or is it weird? (I will not promote)

this might sound random but i wanted to get honest opinions I was traveling recently and there was this girl i kept making eye contact with. It kind of felt like we both wanted to talk but the situation just wasn’t right, so nothing happened and we just went our own ways after that I kept thinking that, this probably happens a lot, right? like what if there was some app where you could turn on a “discoverable” mode for a bit, and it would show other people near you who also turned it on maybe it could just