There are a few things you can do to manipulate faces in Photoshop. You can change the color of a face, add or remove wrinkles, and even make them look older or younger. But there are also a few more advanced techniques that you can use to create realistic looking faces. One is called the Blending Mode. This mode lets you combine different colors together to create a more realistic result. Another technique is called the Masking Mode. This mode lets you erase parts of a face so that it looks like it has been replaced by another image.