Taught school yesterday, gym class. The toughest class to cover. It is a free class with over-energetic teenagers. I had the kids, that wanted to play, do a basketball shooting contest. The rest just grabbed mats and hung out. They are amazingly good with each other and no dramas.
Manhattan is mobbed with tourists, which is great for the economy but miserable if you are trying to get to work or any place else. It's the Christmas season, so you just adapt and enjoy the vibe. At least once a day, I help some tourists navigate the city, usually in the subway. It can be confusing.