The average person will end up smiling around seven and a half times each day. But here's the catch, one of those smiles you give or get today will be fake!

And the person most likely to be on the receiving end of that fake smile is your boss. Just remember, that smile he is giving you back, could be a fake one in return.

This is according to a new survey from a British toothpaste company.

The most cheerful people smile about 11 times a day, while the grumpiest of grumps only manage to show their pearly whites just once.

The survey also showed that a lot of us have trouble with smiling at inappropriate times. Like letting out a big grin during a heated argument or smiling during funerals. One in five people surveyed admitted to having trouble with that.

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