Using the chat feature in imo app is very simple. 

First, you need to download and install the imo app. 

Then, register an imo account or log in using your phone number.

Once logged in successfully, you can find the chat feature in the app. 

Click on the chat icon, you can search and add friends, and then start chatting with them. 

You can send text messages, pictures, voice messages, and have video chats. 

Additionally, imo also provides group chat feature where you can chat with multiple friends at the same time. 

Enjoy seamless chatting with friends and family!