We’re thrilled to announce a whole new way to express yourself on Snapchat. When you’re using the camera to take a selfie, just press and hold on your face to activate Lenses. You can play with Lenses before taking a Snap — just select one from the row at the bottom and follow the on-screen instructions!
Today, U.S. Snapchatters can purchase extra Replays, starting at 3 for $0.99 (). You can use a Replay on any Snap you receive, but you can only Replay any Snap once. They’re a little pricey — but time is money!
I can't figure out how to add those effects.
I've been holding finger on my head for like 5 minutes and nothing is happening.
you have to update your snapchat to the latest version. open your selfie camera hold your face for like a second or so then you will see like a face pattern. choose which effect you want.
). You can use a Replay on any Snap you receive, but you can only Replay any Snap once. They’re a little pricey — but time is money! 
So unnecessary.
