In a new study published in the journal Royal Society Open Science, 498 participants watched a video of an actor staring and indicated when the eye contact began to feel awkward. That took just 3.3 seconds on average. 

Want to see how your staring power compares? Test it out using this video by Science magazine:

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The city of Atlanta opened Azalea Fresh Market downtown to help residents find affordable groceries. (Natrice Miller/AJC)