The mustache made me do it! Respect the stache! Don't trash the Stache! and dozens of other fun Mustache expressions are waiting for you. Don't Judge me by mu Mustache! You make my mustache tingle! and other funny expressions are here. Mustachios are back in style, seize the opportunity now! Get these cool stickers and impress your friends and family. PS: this is an iMessage app, here is how to use it: How to use: Open Messages and pick a conversation! Then tap the App Store for iMessage icon next to the compose field. Here's where you can see which iMessage apps you have installed, including any stickers you have. Just tap the sticker you want to add to the conversation. To slap a sticker onto a photo, video or over another sticker, just touch and hold, then drag it to the location on the screen you'd like to place it. Before you release the sticker, you can use a pinch or swipe gesture to resize and rotate the sticker.