What's The Big Frigin' Difference?

Don't let these two almost identical images of Sarah Silverman rattle you ... Keep yourself focused and see if you can take on the challenge of spotting the sneaky switches that have been made to this tricky pic!

The comedian was spotted cheering on frontline workers from her balcony in New York City and we've made some changes to this pic ... and now it's up to you to find 'em!

Get a really good look around this photo and see if you can figure out the differences between these two super similar snaps.