Pushing the Envelope

"I once made a decision to take a job that was definitely outside of my comfort zone. Pushed the envelope for me. It was a sales position, and I was a very reserved, shy kind of person. It was a commission job, so if I wanted to eat, I had to sell stuff."
"What's your comfort zone?"
"I've tend to be quiet, more of an observer, but I've always pushed myself to grow."

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