When it is time, run outside and look to the sky. You can see a light brighter than the stars fly by.
Santa starts making test flights with his sleigh on the first of December. This Santa tracker will notify you when Santa will pass your location. Use the radar screen to find him and follow his flight.
If you want to see more, get the Special Delivery Service add-on. When a delivery is made, you can see it flare up in the sky for a brief moment.
What you see might also be the International Space Station (ISS) or an Iridium Flare, but you never know for sure ;)