Answer:
It is informal in nature
Explanation:
This is because she refers to them as family, also she doesn't use any head or greeting towards the person referred to as "Chris" there is no use of Mr.
"The Sun Has Got His Hat On" is a song by Noel Gay and Ralph Butler. It is known for its appearance in the 1985 version of the musical Me and My Girl, and was originally recorded in 1932 by two popular UK dance bands
It means that two people are probably dating or more are hanging out together