How to make a snowfall effect
It is so easy to learn how to make a snowfall effect by this example, follow all the steps to make similar.
Take a picture: First open a picture to modify.
Brush settings: Choose Brush tool (B key) and press F5 then adjust the settings.
Now hold mouse and scroll on the picture, you will have similar.
Layer settings: Make layer settings as given here.
Filter effect: Go to Filter menu > Blur > Gaussian blur.
This is your done.