There are varied and multiple words that "describes anything that departs from normal or usual". Some of them are: abnormal, weird, different, unusual, uncommon, atypical, etc.
I think that its active because the noun (Isabel) is before the verb, therefore it is active however it it would've been the other way round.
Answer: The engineer praised/appreciated the smooth workings of the large complex shiny gears in the machinery.
Explanation:
It is a noun definition: the study of the way in which certain body movements and gestures serve as a form of nonverbal communication (such as blushes, shrugs, or eye movement)
