What does the penguin pattern in WeChat mean?

Every expression that comes with WeChat will have an expression explanation, which can be viewed by long press. Here's how to view it:

1. Open any WeChat friends or group chat interface, and click "Expression" at the bottom.

2. After opening the expression list, click "Yellow Face Expression" and turn to the bottom to find these three penguin expressions.

3. Hold down the penguin's expression, and the expression meaning and animation of the expression will pop up, as shown in the figure below. When you hold down the first penguin, the penguin in the display will jump around, and the expression "jump" will be displayed below.

After pressing the second penguin for a long time, the animation shows that this penguin is shivering there, which is explained as "trembling" below.

5. The animation of the third penguin is in a circle, and the expression is interpreted as "circle".