The passage is an example of irony, as it describes a situation where an observer might misinterpret the gentleman's smile in a negative light due to their own disposition.
Observer is a noun.
The German translation of observer is Beobachter.
Jacksonville Observer was created in 2009.
Salem Observer was created in 1823.
Salem Observer ended in 1919.
Harrow Observer was created in 1855.
Peninsula Observer was created in 1967.
Leitrim Observer was created in 1904.
Argus Observer was created in 1897.
Liberian Observer was created in 1981.
Rugby Observer was created in 1991.
Mushroom Observer was created in 2006.