To view your Snaps, press and hold any of the unopened Snaps (indicated by a filled-in box) in your feed page.
If you have multiple Snaps sent to you from the same friend, those Snaps will be viewed as a stacked flipbook of moments, similar to Stories.
The total length of Snap sequence is shown in seconds in the square at the top right of the screen. The length of each individual Snap is represented by the tracing line around the square.
To skip to the next Snap in the stack, tap the screen with another finger.
If you want to view Snaps individually, swipe into your friend's Chat screen.