He dosen't, thats all he does.
This action is an example of affect display or kinesics.
Explanation:
Affect display is an example of non verbal communication in which <u>someone does some gesture from their body or face that betrays their emotional state or what they are thinking.</u>
It is evident in the passage that the batter is
- nervous
- eager to outplay the pitcher
The biting of the nail while watching the pitcher closely is a telltale sign of this.
The answer I found with my brain is A good luck
Diction<span> can be defined as style of speaking or writing determined by the choice of words by a speaker or a writer. </span>Diction<span> or choice of words separates good writing from bad writing. It depends on a number of factors. Firstly, the word has to be right and accurate.</span>