How do I fix the eyes of a person

I assume that you are talking about removing red eye? It's really pretty simple, when you are viewing the picture make sure you see the menu buttons like your back button, delete, all those sort of things at the top. You'll see an icon with three lines and some small circles on the lines. If you click that, you will get into the edit section of the picture. There you see some options of things you can do. You'll see a button that looks like an eye with a line through it. If you click on that it will then have you click on the eye that you want to get of the red and it will remove the red for you.