apersee

Example:The viewer was fascinated by the scene unfolding before them.

Definition:A person who looks at or watches (something), typically from a distance.

Example:He was a dedicated spectator, never missing a match.

Definition:A person who watches an event or performance from a fixed or specified position.

Example:She is an observer of human behavior and writes about it extensively.

Definition:A person who is engaged in the careful observation of a process, subject, etc.