Water pouring puzzle Puns

She grabs a cup of hot cocoa and watches through the window as he fills the bucket up with water and races from the back of the house all the way out to the front yard and out of sight. She bundles up and goes outside to get a closer look and sees that he’s cleared the snow from the sidewalk. She watches as he takes his bucket of water and pours it out on the cold concrete. She’s puzzled for a second and then says:

Icy, what you did there.