If you have their photo saved to your device:
Tap on their icon in your My Circles screen.
Then, tap the gear (edit) on the top right of the screen.
Tap the camera icon next to the person’s name.
Select a photo from your device’s photo library.
If you don’t have a photo saved to your device, we recommend finding a photo from Facebook or another app. To do this:
Open the desired app and find the person and photo you’re looking for.
Long-press to save the photo to your device’s photo library.