How do you talk? Just text chat or does he send you photos too? You need to see photos of him, and I'd also recommend video chatting before you even think about meeting up. It sounds dodgy as anything to me, to be honest, so you need to take every precaution to make sure he's legit. In this day and age I do think we can be overly paranoid because of what we see on the news etc, but if you don't already do this, have a few video chats with him. Other than anything else, you can sometimes find that you'll talk to people online via text but then when you're face to face or on the phone you struggle. Chatting to someone online is different as you have time to think of what you want to say - but being able to have a voice conversation is what shows if you really have chemistry IMO, as you can tell right away if it's comfortable conversation or not. If you do meet up, take someone with you if you can (double date maybe - like Gavin and Stacey ha) and meet in a public place, and don't go back to his place or to a hotel or anything on the first date.