Never underestimate the positive power of an unexpected high-five.

Brooklyn, New York, resident Meir Kalmanson, an actor and filmmaker, prides himself on being able to brighten the lives of the people around him — even if he doesn’t know them personally. In his latest YouTube video, Kalmanson runs through the streets of New York City, high-fiving every outstretched hand of people attempting to hail taxis — and their reactions are priceless.

If you’re in need of a pick-me-up today, we dare you to watch all 86 seconds of this “High Five New York” mashup below and try not to smile.

We bet you couldn’t do it!

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