We have no foolproof way to do this; all we have is the trust that our community is full of mostly good, honest people, who want to share and connect with other geeky peeps on a global scale and be nice to one another. Once we have paired you up with your pal, it will be up to the two of you on how you want to proceed! You may want to chat a little over email first, to do your own sort of screen on the person. Maybe you can exchange Facebook links if you are unsure.