observe

(verb): To notice or view, especially carefully or with attention to detail.
(verb): To follow or obey the custom, practice, or rules (especially of a religion).
(verb): To take note of and celebrate (a holiday or similar occurrence).
(verb): To comment on something; to make an observation.

From this vantage point we can observe the behavior of the animals in their natural habitat.
Please observe all posted speed limits.
The senator observed that the bill would be detrimental to his constituents.