When you are using a snapchat and sharing a snap to their friends and you are seeing a smiley face emoji in your friends chats and you are thinking what does the smiley face mean on snapchat. So we are here to tell you what the smiley face means. When a smiley face emoji shows next to a username it means they are your best friend. You guys are sending a lot of snaps to each other but they are not your no1 best friend. Smiley face means that you are one of those person of best friend.