There’s a new Housewife in Tinseltown — and she’s got a great sense of humor.

Speaking to PEOPLE on Wednesday night in Los Angeles atSean Penn‘s CORE gala for the organization’s 10th anniversary,Garcelle Beauvaisopened up about her decision tojoin season 10of Bravo’sThe Real Housewives of Beverly Hills.

“I feel like, ‘Why not?’ I wanted to do something outside of the box — it is sort of like my midlife crisis,” she said with a laugh. “Instead of buying a Corvette or doing something crazy, I joined theHousewives.”

And Beauvais, 53, has already learned some valuable lessons from the cast, including that she “can’t let [her] guard down.”

“Because one minute they are laughing with you, and the next minute they are throwing you under the bus,” she said. “I’m like, ‘We were just cracking up!'”

“It is really interesting for me, because as an actor you are a character, so it’s really weird to show up and just be me,” she added. “So I’m just going along for the ride and seeing how it goes.”

Garcelle Beauvais.Rodin Eckenroth/WireImage

Garcelle Beauvais

The Haitian-American actress and former fashion model, who said she’s longtime friends with costarsDenise RichardsandLisa Rinna, has also found out that she’s “a lot more sensitive than I thought I was.”

“I put up this tough exterior all of the time, I do my thing, I’m an independent woman. And I find myself… I got emotional on the show a few times,” she admitted. “I was surprised that could happen so quickly for me.”

The star shares son Oliver, 28, with her first husband, producer Daniel Saunders, and twin sons Jax Joseph and Jaid Thomas, 12, with her second husband, CAA agent Mike Nilon.

Also joining the new season is Sutton Stracke, a renowned party planner and hostess. The newbies will star alongside Rinna, Denise,Kyle Richards, Teddi Mellencamp Arroyave,Dorit KemsleyandErika Girardi.

Real Housewives of Beverly Hillsseason 10 is expected to premiere sometime this year.

source: people.com