ERC - as far as your question about Words of Affirmation, i think if you kept to things about the kids it would be good. Especially and only if they are true. Like your story from the other night playing ball.
"I appreciate the fact you took time out of your day to bring the girls over to watch me play softball tonight. You didn't have to but I had a great time showing off for them, Thanks."
"You always dress the kids nicely, it makes me a proud dad with them looking so cute. I'm always having to say thank you when people complement them. So thank you."