Ensure that your image is good quality (larger than 250 kb) and that the face is well-lit and directly facing the camera. The angle of facial rotation should not be more than 45° horizontally or 30° vertically.
The demo database contains the faces of the 50 most searched celebrities (see the list below). Upload a shot of any of these celebs or simply use a picture of yourself to find out which celebrity you look like. Have fun and enjoy!