Face-Aware Liquify in Photoshop automatically detects facial features, so you can adjust and enhance facial expressions.
Open your photo in the Liquify window
If you want to make further adjustments in Liquify later on, first right-click or control-click and choose Convert to Smart Object.
Drag the sliders to adjust various facial features
The sliders can be used to adjust various aspects of the Eyes, Nose, Mouth, and Face Shape.
You can also make adjustments by clicking and dragging directly on facial features. To do so, select the Face Tool in the Toolbar to the left of the Liquify window. Hover your cursor over a facial feature until it changes to a double-pointed diagonal arrow, then drag it for desired adjustments.
The final result
That’s it! You now have the perfect facial expression for your ad.