What is he doing?
He is going for a hike. / He is hiking.
What is she doing?
She is throwing snowballs.
What is he doing?
He is running in the snow. / He is running.
What is she doing?
She is ice skating.
What is he doing?
He is sledding.
What is she doing?
She is making a snow angel.
What is he doing?
He is building a snowman.
What is she doing?
She is watching birds.