Make your day special with Mother's Day Stickers How To Install iMessage App and Use Stickers : - Open iMessage from your iPhone. - Click on the Appstore icon. - Tap the four oval icon on the lower left corner to open the app drawer. From there, tap the plus icon labelled 'Store' to access the Messages App Store. - In the App Store, tap the Manage tab in the top right to add your purchased apps to your app drawer - Select the your stickers app . - Just with a single tap send stickers. - Also simply long touch and peel off the stickers to add them with your texts!! or existing stickers. - Scale & Rotate stickers by using a second finger before you place it on a bubble.