If you take a picture with your cell phone you should be able to send it to your email. On the cheaper phones (like mine) just click send and enter the email address where the phone number would be for a normal text message. You could try asking them what their name is. Next time they are around ask them who they are and if you can help them in any way. Your next thought should be them. I would love to hear what they have to say. Sometimes ghosts have a message they want heard and/or delivered, or they just want to hang around and enjoy where they are. As I have said, I don't try to remove mine. I have moved into their world, not the other way around.