How to add a sticker to a conversation:
･ Open Messages and tap the Compose button to start a new message. Or go to an existing conversation.
･ Swipe left or right over the app drawer to the Shibamoji Sticker Pack app.
･ Then tap the app to open it.

If you want to add a sticker, touch and hold the sticker, then drag it to the message bubble. The sticker will automatically send when you add it to the message. You can also pinch or zoom to resize stickers before sending.

If you receive a message with a sticker from an iMessage app that you don’t have, touch and hold the sticker, then tap Sticker Details to view the app in the App Store.