You must Move into 1 adjacent Room. If a Room is connected to another with a flat wall, they are considered adjacent. This includes moving through walls into Rooms that are next to each other on an adjacent Mall Card, even if the wall doesn’t have a door. Thematically, the Human is moving through destroyed parts of the wall.
Note: the Courtyard has 5 Rooms.
Even if you start your Turn in a Room with a Zombie, you MUST move first, even if this is into a Room with another Zombie.
Keep moving! You MUST make a Move first in order to take any additional actions. Zombies may be slow, but they are not going to let you sit around and wait.