Anna Faris 'never thought' she was 'a particularly funny person' (Exclusive)

Anna Faris' latest project made her "nervous."

The comedian, who has fronted countless major films like "The House Bunny" and the "Scary Movie" franchise and stars in CBS' highly successful sitcom, "Mom," was tasked with doing improv for a new video series with Klondike, which is not something she's used to.

"I was really nervous to do this," she told AOL's Gibson Johns exclusively of the collaboration. "Normally, when I perform, words are written for me and you escape through that avenue and there’s the acknowledgement of exchange when working with a fellow actor. But this was exciting and intriguing to be part of this campaign where I was doing improv."

In the hidden-camera video series, Faris steps into a variety of disguises to see how far unsuspecting strangers would do for a Klondike bar. The actress told us that she "never studied improv," so being tasked to do so when she's so used to working with scripts was both "challenging" and "rewarding."

"I love playing with characters, but I never thought of myself as a particularly funny person," Faris said with a laugh. "The thing I finally realized about myself is that I have no idea what my face is doing when words come out of my mouth. If I look in the mirror, I have my own personal mirror face -- we all have one! -- but then, when I see my face actually move, I'm like, 'Ah, nope. That's not right. That's not as put together as I thought it would be.'"

But once the comedian let herself go and got over her nerves while filming the video components of the relaunch of Klondike's iconic slogan, What would you do for a Klondike bar?, she enjoyed herself. And, after all, enjoying her the projects she works on is what truly matters for her these days.

"I like the idea of an earned moment, and the idea that, if the performer is having a genuinely good time, you can feel it as an audience, whether they’re a villain or a hero," she explained. "If there’s that satisfaction for an actor, the audience can pick up on that and I like doing that. In general, I also just want a fun working condition. Actors are one of the 0.02 percent of people who enjoy their jobs, I think. There are definitely times when the grass is greener, and I could be making, like, goat cheese or something, though."