How Do You Reply to Deadend Text?

Change the sub-topic if it doesn't feel too nosy.

"What pokemons are you training?"
"Can you breed in Yellow?"
"What did you have for dinner?"
"I saw your new fb pic, is that girl with you your gf?"

What would feel REALLY nosy would be along the following lines:
"Hey, how were you today?"
"Fine."
"Busy at work?"
"Yeah."
"What're you doing?"
"Nothing."
"Today I almost got raped on the street."
"Cool story, bro."