Palash Volvoikar contributed to this article. You can say a lot with a snapshot – and that’s the beauty of Snapchat. You can capture quick images or short videos, add captions or filters, and send ...

But Snapchat’s interface isn’t always obvious. The app uses dozens of emojis, arrows, dots, and icons to signal what’s happening in your chats, stories, and friend list. Some indicate message status, ...