While the basic controls are simple, mastering advanced movement techniques can significantly improve your navigation and evasion. Remember that crawling (Left Ctrl) is not just for small spaces; it also makes you much quieter and less visible to the Shadow Figure. In areas with the Shadow Figure, always prioritize crawling, even if it's slower.
When climbing, look for objects that can be stacked or pulled into position. Sometimes, a seemingly unreachable ledge can be accessed by pushing a chair or a box underneath it. Experiment with jumping (Spacebar) while crawling or walking to gain a slight height advantage or to clear small gaps. Don't be afraid to backtrack slightly if a path seems blocked; often, an alternative route or a manipulable object is nearby. The game rewards careful and deliberate movement over rushed actions.