The new features are available worldwide today.
This feature allows you to express five emotions – love, laughter, surprise, sadness or anger - in real-time.
During a chat, users can tap on the reaction button at the bottom of the screen, and choose one of these five.
The chosen reaction will then animate onto the screen.
New filters have also been added to video chats, ranging from subtle lighting tweaks to bold colour changes, including red, white, black or yellow.
Facebook has added several news masks, as well as animated effects.
4) Screenshotting and sharing
The final feature added is the ability to easily capture and share pictures during video chats, through the camera button at the bottom of the screen.