What is the meaning of the two faces icon (second from left) in the Selfie/Gear?

[AC Question]

What is the meaning of the two faces icon (second from left) in the Selfie/Gear.

When you click on it, it switches from both facing left to the right one facing right.

 

[B. Diddy]

Re: What is the meaning of the two faces icon (second from left) in the Selfie/Gear.

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