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.
Pro bsby because she's boring, or she doesn't have much dialogue, or simply because she's not desecribed very well
The error in the possessive construction is that, instead of passenger's, it should be "passengers'". The apostrophe should be after the letter "s" because the noun is in the plural form. The correct sentence would be "Passengers' concerns about cell phone use on planes are justified."
