Expand to a full screen contact photo when you click on the little round contact photo on someone's contact card. Then you can see detail.
Often people don't crop their photos well, including a themselves as a small subject in the center with too much background. When it is displayed as a small contact picture it's too small to really see. If I click on it, I'd like it to expand to a larger version (full screen on a phone). This should be standard behavior on all Outlook platforms.