What is when does snapchat say someone is typing?

Snapchat will show that someone is typing when they start typing a message in the chat box or change something in a multimedia message (such as writing on a photo or adding a caption). The typing indicator will appear at the bottom of the chat box with the person's name and will disappear once they stop typing. However, it's important to note that the typing indicator may not always appear immediately, especially if there is a poor internet connection or if the app is experiencing glitches.