Shape the Shot editorial teamUpdated
Camera blocking and composition
A enters through the doorway, turns toward the center and pauses; B is already at the back. The opening follows A, the middle reveals B and the ending clarifies the shared space. There is no door-opening animation or automatic character gaze solver.
Shot-by-shot breakdown

0–3 s 1. Follow the entrance
Approach the room with the entering character.

3–7 s 2. Reveal the guest
Show who was already inside.

7–12 s 3. Shared space
Place both people in one readable frame.
Try it in your own scene
Move B, delay the reveal cut, and extend the pause after A stops.
About this example
How can the discovery feel more sudden? Control when B becomes visible before adjusting pace. Faster walking alone does not create surprise.