Well, try to at least. It's easy! Just to what I did.
[...does he really not know? she can help a little! She gathers up another snowball and runs towards him to shove it in his hand. They just might have piqued the interest of a lurking Mistletoe-kun~]
OK, now I'm gonna try and run away, and you have to throw it at me! That's what you do in a snowball fight!