Paulina Gretzky's son is developing into his personality.

Paulina Gretzky Supports Her Fiance During Rough Golf Game

On Sunday, the femme fatale posted a video of her baby boy, Tatum, on Instagram where he lies down in a blue sweater that looks a bit like Donald Duck's outfit. As his mom records him, she asks him to show her his "fake cough." She then adds a little cough, herself, and what does Tatum do? He coughs!

Before he added his little voice, the baby looked a little hesitant. But his mommy told him that he knows how to do it.

 

A video posted by Paulina Gretzky (@paulinagretzky) on Aug 2, 2015 at 12:50pm PDT

Paulina Gretzky & Dustin Johnson Jetset On Surprise Birthday Trip

Tatum is starting to look more like his parents these days. He has the attractive facial features that his mom has along with his golf star dad, Dustin Johnson.

Meanwhile, Johnson previously spoke with Mercury News about spending time with his fiancee's father, Wayne Gretzky, one of the biggest hockey athletes of all time.

"I learn more from Wayne just by watching him and seeing what he does and asking him questions about when he was playing and things like that," the golfer said.

Johnson then opened up on playing in the U.S. Open when he was beaten out by Jordan Spieth.

"It gives me the confidence to know I have what it takes to win. I think I showed that at the U.S. Open," he said. "Coming down the back nine, I was hitting the shots that I wanted to hit. Unfortunately, the ball wasn't bouncing in the hole."