Capital first letter I think but I'm not completely sure if that's what you're looking for :/<span />
Answer:
It is a literary analysis
Explanation:
A clause because a clause needs a subject and a verb in this sentence Buffalo is the subject and roam is the verb.
He was using his body language and gesticulation to make a digresion and push the speach in a new direction for a brief amount of time. Digresion is commonly used in public speaking when one is giving and example, introducing new topic, bringin a guest in, and so on.