Face the lens
Keep the camera at eye level and look straight ahead. Include the whole face with a margin around it.
Use soft light
Avoid shadows, bright glare and beauty filters. Keep your eyes naturally open and mouth relaxed.
Keep enough distance
Close wide-angle selfies can distort facial proportions. Step back and crop the photo afterward.
Use enough detail
A face at least 140 pixels wide can be analyzed; a larger, sharper crop is preferable. Small crops receive a low-resolution notice.
Use photos with permission
You must be 18 or older. Use your own adult photo or a photo of an adult who agreed to this analysis. Keep conditions similar for comparisons.