Work the walk-in queue
Open Menu, then CLIENTS & BOOKINGS, then Who's waiting.
Check-ins from the kiosk appear here automatically, and + Add a walk-in adds someone yourself. Adding takes a Service, picked from your menu or entered as a custom one, optional Expected minutes, and a Note.
Move people along with Mark seated and then Done. Back to waiting undoes a mis-tap.
An empty queue says nobody has checked in yet today.