2. After 2.Photoshop opens the picture, click the filter option above, and then click Liquefaction in the filter.
3. Enter the liquefaction interface, first click a left push tool.
4. Use the left push tool to liquefy the picture.
5. To return to the previous step, just press the shortcut key Ctrl+Z, and to undo multiple steps, press the shortcut key Ctrl+Shift+Z. ..