Studio Notes

Designing AI presence: why digital humans need a point of view

Marlon on personality, memory and the difference between an assistant and a brand ambassador.

Marlon R. Nunez · November 18, 2025 · 5 min read

Most AI products are designed to be helpful. Digital humans, in our experience, need to be designed to be someone. That's not the same thing.

When a user opens a chat with a text-only assistant, they have very few cues about who they're talking to. The voice can be neutral. The personality can be a soft hum in the background. With an embodied AI, that's no longer true. Every gesture, every line reading, every micro-expression is a personality choice you're making, whether you intend to or not.

Three things we design for

  1. A point of view. What does this character believe? What do they care about? An assistant that tries to please everyone reads as hollow on a face. A character with a perspective reads as alive.
  2. Memory with edges. Remembering a user's name is table stakes. Remembering what they like, what they avoided, what they laughed at. That's where presence lives. So is forgetting the things that aren't theirs to keep.
  3. Restraint. A digital human doesn't need to fill every silence. The best ones listen. The worst ones perform.

Every avatar we build at Digito starts with a one-page character document before a single polygon moves. It's a small upfront cost that pays back the rest of the production.