The answer you are looking for is Phonetic. Phonetics' are in a branch of linguistics' that comprises the study of the sounds that humans make.
I’m pretty sure it is Shelly’s point of view himself, hope this helps!
In this particular sentence, the phrase "Nice Move" is an example of VERBAL IRONY, as the speaker says something in opposition to his/her real emotions, ideas or thoughts. In this utterance, the spectator is criticizing the way the player threw the ball rather than praising him/her.
Answer:
Positive: The uncle is going to be seen as helpful for willing to take care of the baby.
Negative: He is going to be seen as "standoffish" or "rude" because he is not willing to take off more than a week to take care of his newborn niece.
Hope this helps and makes you understand better!! If you have any more questions I would be happy to help!! :)