Isn't Grindr more of a sex app, than an actual 'dating' app? I've never used it, although friends have. If you're hooking up, and there's room in the app for what turns you on, (or maybe there isn't: I went to install it just to see what it was a out, but it's pretty intrusive. Wants access to everything in my phone, so I'm going to activate an old phone and put it on there and see how it works, but MAN, it wants your photos, access to camera (and everything else. NO WAY.)
Anyway, if there's room for photos, just put a photo where your feet are right at the front of the photo (you're lying in a hammock, on the sofa, on the floor) and the rest of you is lying back. Guys aren't stupid, and if you have 3 or 4 photos with your feet showing, they'll figure out you are into feet. Either they think it's "like, totally gross, dude," or they'll say, "You have nice feet." There's your opening. ON the other hand, since I haven't used it, maybe there aren't room for a number of photos like I suggested.
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