This is a typical conversation with my son after he gets home from school. (He's 17)
Me: Hi son, how was your day?
Me: What'd you do today at school?
Me: How's Calculus coming along? Do you like the new teacher?
Him: unh (imagine this as a gutteral grunt)
Me: How was football practice?
Me: What did you get to do at your work experience place today?
Me: oh. Good day, then?
Him: yeah, fine.
*end of conversation*