Prism will almost always have Hawk's Eye on her, in the sense she has trouble falling asleep if it isn't in arm's reach. Accompanying that is at least an ammo canister on her person and more in her bookbag if she can manage it, her scroll, varied amounts of cash, and probably some emergency rations. She hates being caught unprepared.
Jima's look isn't completed without her notebook hanging from her belt and a pencil tucked into her ponytail or behind her ear.
Azre usually has his saxophone or at least some form of musical instrument, Ezra carries the essentials and maybe a mobile phone charger.
Chantou idly plays with butterfly knives as a habit, so she'll have one or two on her person at any given time. She'll have her car keys on a chain, a multitool somewhere, and most definitely her driver's license.