The getting-to-know-you activities helped the new team members feel comfortable more quickly.

I forgot my umbrella this morning and, wouldn't you know, it started pouring as soon as I stepped outside.

I won't bring an umbrella, but you never know — it might rain this afternoon.

Anyone who wants to teach programming effectively must know one's stuff.

To know one's mind, one must spend time reflecting.

To know one's onions when it comes to culinary techniques, you need years of hands-on experience.

When Maya declared the neighborhood bakery made the best croissants, I know that's right — I've been stopping by every Saturday for years.

I don't know A from B when it comes to ancient history, so I need help.

We didn't know any better at the time, so we followed the outdated instructions.

He stood by his decision, knowing any better would not have changed the outcome.