Freezing the Frame: The Liquify Tool
When using Liquify use the Freeze Mask tool (F) to mask off areas of your image or photograph you don't want affected by your liquification..
To access the Freeze Mask tool here's what you do:
- Click the Advance Mode checkbox near the top right of the Liquify dialog and thats all yu need to do
This is great when your image or the subject you're liquifying is standing in front of words or patterns that would make the Liquify obvious.