Where is the smiley face logo in Apple's 4s SMS collection?

1. On the iphone desktop, select Settings.

2. In the setting menu, select General.

3. In general, select "Keyboard".

4. In the keyboard settings, select "Add a new keyboard".

5. Then, in the open keyboard options, select "Emoji" and select it.

6. After checking, you will jump out of the keyboard settings, and you can see the emoji in the keyboard options, which proves that the addition is successful.

7. Then open the input box, and you will see the emoji keyboard during keyboard switching.