Choose a brush from Paint > Effectbrush > Smear Brush and use the brush to smear paint.
 and use the brush to smear paint.
         
          
            To smear paint
            
 
            
               - Select the image layer you want to smear paint on.
                  See Select an image layer.
                   
- Choose Paint > Effectbrush > Smear Brush . .
- Drag the stylus on the area of the image layer you want to smear.
                  Tip 
                        You can use any brush as a smear brush by setting  to  in the  window.