Chances are

You are at four way stop sign and at the same time a car pulls up. She smiles and waves you to go.

You are reading the newspaper at the coffee shop. You noticed her working on her laptop. She catches your eyes, smiles and you continue to your newspaper.

You call out for someone to hold the elevator. It's crowded and you bumped into someone. You say sorry and she smiles and says it's ok.

You grab some packs of beer and you don't want to miss the game. One person is in front of you at the express lane. She notices that you don't have much items and she lets you go ahead of her and you smile and say thank you.

You are sitting on the window seat on a plane. An empty seat between you and the person on the aisle seat. The stewardess passes your breakfast and the carton of milk falls. You catch it and so does the woman on the aisle seat. Both of you smile and continue to your breakfast.

Just think about? That could be ME. Hmmm