Watch: Grandparents have perfect reaction to baby announcement

Some announce engagements with posts to social media. Others announce pregnancies with creative videos.

But one couple told their parents they were expecting in a different way: They played a form of charades until the grandparents-to-be guessed the news themselves.

The grandmother-to-be guesses almost instantly that the woman is pregnant. But the future grandfather takes much longer, guessing phrases like, "You are going to the beach," and "I'm going to behave."

When he finally guesses "I'm going to be a grandfather," his reaction is priceless.

Read more here.

Watch the video below.