First time at Skate America- advice needed!

As a lifelong fan, I’m so excited to be checking “attend a figure skating competition” off my bucket list at Skate America in a couple of weeks! But I need some advice…like what should we wear/how cold will it be in the arena? What’s the etiquette if I see someone famous? Anything else I should know? I don’t want to make a fool of myself as a total newbie (though if I come face to face with my fave Kevin Aymoz, I can’t be held responsible for my actions lol). Thanks in advance for any advice!