Ask for the phone number and offer yours. After you get that first response, be sure to reply with a nice note answering specifics but suggesting you meet for coffee or a drink or dinner or whatever. I'd really love to get together with you to learn more about you. Can I have your phone number, or if you prefer you can call me. If you are looking for more than a chat pal it is important NOT to waste time if you can't get the number.
Nothing replaces a real conversation on the phone.
If you can't get a number or get them to call you - your chances of a real meeting are slim. Get weird and talk dirty. OK, this one is quite optional, but we've found that when appropriate, it really helps to get them loosened up and talking weird on the phone. Don't be too stiff and proper. You'll be priming the pumps for a rendezvous and possible fling.