verb /ʌʔbˈzɝv,ɒbˈzɜː(ɹ)v,əbˈzɜː(ɹ)v/
From this vantage point we can observe the behavior of the animals in their natural habitat.
b) To follow the custom, practice, or rules (especially of a religion.)
Please observe all posted speed limits.
Wikipedia foundation.