Stickers can be used to make comments on photos and videos uploaded to FamilyAlbum.
1. Go to the Album tab and tap the photo or video that you want to leave a sticker comment on
2. Tap the smiley face icon that appears in the comment box
3. Tap the sticker you want to use
If you are unable to use stickers:
If you have signed up for a sticker subscription but are unable to use stickers, please see I have a sticker subscription but I can't use stickers.
If you want to edit a sticker:
Tap the edit icon in the bottom right corner of received stickers to replace photos. In addition to three automatically-suggested photos, you can choose any photo uploaded to the album. For details, please see I want to change the photo used for a sticker.