How to type the expression as shown in the figure in iphone? What do you mean?

Show the meaning of the devil, the operation method is as follows:

1. First, on the mobile phone information page, click the expression pack at the bottom of the input box, as shown in the figure below.

2. Then in the page that opens, select the expression and click it.

There is a place to comment below. Click it to start input, as shown in the figure below.

4. Then fill in the recipient number, as shown in the figure below.

5. Finally, click Send to send out, as shown in the figure below.