The Secret Diary Of A Call actress appeared to be exhausted as she popped into a Starbucks store in London for her caffeine fix.
But despite looking a bit washed out with her hair tied back, Billie gave onlookers a treat by flashing her pins in a tiny pair of denim shorts as she left the shop.
Billie said: "I'm just trying to find a job. We're back to the drawing board.
"It's frustrating, it's tiring. It's desperate. You slightly lose your mind. You have no confidence, then you have too much confidence.
"It's an endless frustration. That's the nature of the beast. You have to suck it up and get on with it."
She also said she is considering moving to America with her hubby Laurence Fox and their son Winston to find a job.