1. it is fine
2. ok
It's OK.
If the other person does mention his family, then it is perfectly OK to ask about the ages of the children, and if you have children, to compare educational and cultural differences in raising children.
Now turn to your right, a little more, a little more. OK, now lie still on your back.
I'm just popping out on a date, OK? "Come home by 7, Sakura!"
You're OK without your glasses? "Ah, these are fake you see, I thought it might make me brainier..."
If it's a light workout, OK. "Right, so will we allow crotch-kicking and eyeball crushing?"
I am the Flying Spaghetti Monster. Thou shalt have no other monsters before Me. (Afterwards is OK; just use protection.) The only Monster who deserves capitalization is Me! Other monsters are false monsters, undeserving of capitalization.
That's dangerous, I'll clear it up. "It's OK ... Ouch!" "Look, didn't I tell you so?"
Mmmmn ... maybe I'll have a hair of the dog. "Whoa, hold up a mo! Here, I cooked roast fish for this morning. You ought to be able to eat this OK."
Ah ... I'm just not feeling so well "Really? Are you OK?" "Heh-heh. Actually I'm playing hooky."
Clean up in front of the shop first. "OK!" "Sprinkle some water out there too."
I want my dark elf to be blue. "OK... That one's purple. You'll be purple for this week."
...Hey...Hey, teacher! "Eh? Oh." "Are you really OK? Shouldn't you cancel the lesson?"
Rock-paper-scissors, OK? "Rock." "Sciss... paper." "You cheated!"
Right, I'll check your work, OK? "Please go ahead and inspect. I think I gave it a good go."