After awhile I got so cold my hands were shivering to the point where I couldn't sketch any more. I have nothing but admiration for sketchers who are outside doing their artwork in really cold climates. I think the Christmas Tree guy kept warm by constantly rearranging his trees.
In the afternoon we went to sketch The Strand Bookstore a few blocks away. There's a restaurant across the street. Joan noticed lots of empty seats. We went in, got a warm beverage and seats by the window. Now that's the way to sketch NYC streets in December!