HAMDEN, Conn. (CBS 2) — So what’s the secret to living over 100 years? As she celebrated her 103rd birthday, Sister Cecilia Adorni attributed her long life not to a healthy diet or clean living, but rather to attitude.

“I think that’s one of the best things in life is to be happy and to be cheerful, and people see you being happy and cheerful, and they become happy and cheerful,” she said.

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Her birthday party was held at a nursing home in Hamden, where she still works nearly five hours a day. Of course on that day, she showed what positive attitude is all about, by dancing the polka.

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Co-workers said Sister Cecilia also likes to eat an occasional steak.

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And when it comes to pepperoni pizza, they said she can eat anyone under the table.