With the new update, this now applies to photos where you’re kissing someone (or something). Plant a smooch your significant other/pet/child/glass of wine, and the Pixel 3’s camera should be able to snap your photo for you.
It’s a fun update, but there’s actually some impressive AI at work behind the scenes. In order to build the feature, Google had to teach its software to recognize people kissing, and when it’s the optimal moment to shoot a photo.