Peeking: Seeker looking before counting is complete; Out of Bounds: Hiding outside the designated play area; Moving: Changing hiding spots after the seeker has finished counting
Why people argue about this
People often assume that if they're moving during a seeker's search, it only means they've been found immediately - which isn't quite what the rule states. Actually, the key point is that if observed by the seeker, you are automatically "found," not just assumed to be found based on movement alone.