There isn't one specific word for a person who enjoys watching, as the term can be applied to a wide range of activities and contexts. The most appropriate term depends on what they enjoy watching.
Here are some possibilities:
- Spectator: This is a general term for someone who watches an event, performance, or game.
- Observer: This term is often used for someone who watches something carefully and attentively, often for scientific or research purposes.
- Viewer: This term is commonly used for someone who watches television or a movie.
- Audience: This term refers to a group of people who are watching a performance or event.
- Fan: This term is used for someone who is a passionate supporter of a particular team, artist, or activity.
The best term to use will depend on the specific context. For example, you might call someone who enjoys watching football games a "fan", while someone who enjoys watching documentaries might be called an "observer."