[look on] or [look upon] {v.}
1. To regard; consider; think of.
* /The stuff had always been looked on as a worthless factory waste./* /Until the day Bob made the touchdown, the other boys had looked upon him as rather a sissy./
2. To be an observer; watch without taking part.
* /Fred had never been able to do more than look on at athletic sports./* /The children played in the park while their mother looked on./
Compare: SIT IN.