The Villain Who Barely Speaks Can Still Dominate a Scene
A character's effect on everyone else may tell you more than a threatening monologue.
The intimidating character enters and says almost nothing. Other people stop joking, change their posture or leave a sentence unfinished. The room supplies the introduction.
Watch the reactions
Hitchcock's writing on his methods highlights the deliberate assembly of a film's moments. For this viewing exercise, concentrate on the supporting characters rather than the person who appears to hold power.

Editorial image from Blogdel's entertainment collection, used for illustration.
Who notices the arrival first? Who avoids eye contact? Does someone move an object out of reach? These details can establish a relationship without a speech announcing it. The audience reads the character through the changes they cause.
Try a different entrance
Imagine the same person arriving while everyone continues eating and laughing. The costume and expression stay identical, but the character's authority feels different. The surrounding behaviour is doing part of the storytelling.
Silence is not automatically depth, and a quiet villain can be as thinly written as a loud one. The useful question is whether the scene gives the silence consequences. A character becomes compelling when the film makes their presence alter choices, not merely when it asks an actor to stare ominously at the camera.

Editorial image from Blogdel's entertainment collection, used for illustration.
Sources and further reading
References
- Alfred Hitchcock: my own methods | BFI · primary