They want to know she is real, from what I'm (told) but I have enough sense not to send a explicit naughty video with my face showing.
As you can see in my very short(teaser) videos that are FREE, it gives the man some idea of what he would be paying for when it comes to a session without giving too much away.
So far it has worked for me & if they want to see more they have to see it in person. Setting the appointment is where the big money comes in.
The same method as stripper's teasing men so they will eventually go to the vip room for the real deal up close & personal. $$$ talks