You can take photos of your Pokemon when it is participating in the contest. When the camera icon is displayed, you can snap a photo of your favorite moment in the contest
If you talk to the young man near the reception, he can help you take pictures of your Pokémon while performing its move, with the world around you in the background.
You'll earn fans while performing in contests. They'll be waiting near the entrance of the Contest Halls. They'll cheer you on and even give you gifts. Your fanbase will grow in number as you rise up the ranks.