You must have at least one large box of props that you can use. I have a lot of old gloves, scarves, etc. that I have collected for this game. You can get these fairly cheap from Daiso, or ask around for old clothes.
One student will come up to the front of the class from each group. With their backs to the TV, they will have a box of props in front of them. Then, you can click to the next slide. It will show some type of weather that the students need to dress for. The team members can say, "put on your hat" or "take off your sunglasses" to their team member. Groups try to be the first to prepare for the weather.