what is observation
Observation(noun) the result of an act, or of acts, of observing; view; reflection; conclusion; judgment. Observation(noun) hence: An expression of an opinion or judgment upon what one has observed; a remark. Observation(noun) performance of what is prescribed; adherence in practice; observance. Observation(noun) the act of recognizing and noting some fact or occurrence in nature, as an aurora, a corona, or the structure of an animal.
Observation means studying and gathering information on an activity: of what happens, what your object of study does or how it behaves. Observation is visual: you use your own eyes, perhaps assisted with a camera or other recording instrument.