In just eight weeks, John Stamos has transformed from America’s favorite uncle onFull Houseto everyone’s favorite new dad.
The actor, 54, is now a proud father to son William “Billy” Christopher, with wifeCaitlin McHugh. And not even two months into parenthood, Stamos is revealing to PEOPLE how he’s been adapting to the spit-up and tears — the latter of which he admits haven’t only been coming from his newborn.
Unfortunately, Billy hasn’t quite picked up on Stamos’ iconic haircare regimen just yet — but the new dad says his sonhasinherited his signature smile.
“He has my smirk,” Stamos shares. “But he only goes into action when I turn off the camera! I’ll have to reverse that if he’s going to be my son.”

The star, who recently designeda “St. Amos” bracelet collectionwith McHugh, 32, for My Saint My Hero, also says that aside from his sleep schedule, his style has changed as well.
“I went to a meeting with spit-up milk on my knee and my shirt was wet still from pee. That’s my style,” he admits. “I’ve really neglected myself. In fact I’ve really got so gosh darn fat! I’m going to Pilates right now.”
Continues Stamos, “People over the years have said, ‘Wow,you look so young!’ Get ready, folks, ’cause now I’m going to show them I look my age and I’m older.”
Stefanie Keenan/Getty Images

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Another upcoming milestone for Stamos? His firstFather’s Dayon June 19, which he says he plans to spend thinking of his own father, whom Billy is named after.
“I know I’ll be crying a lot,” he says of his plans for the holiday. “I’ve been writing Billy a letter that I’m putting away for him to read when he’s 18. I’ll probably continue writing that, and I’ll certainly try to honor my father.”
“We live in an anxiety-riddled, unsure, divisive time right now,” saystheERalum. “I think most of us are searching, even subconsciously, to find what’s missing from our lives: grace, charity, kindness, and peace, and family, and community and friendship.”
John Stamos/Instagram


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“I just hope this world is a better place for Billy when he starts to understand what it’s all about,” Stamos explains. “And I just want to be an example to him. I have a real responsibility now. I’ve never really had real responsibility.”
He adds, “I thought it was beyond me to have a kid and a great wife, but it’s given me a reason to live. Life is in session now.”
For more from John Stamos, pick up this week’s issue ofPEOPLE, on newsstands now.
source: people.com