Select theGIFicon between the photo/video camera icon and the poll icon.
The GIF search box opens.
pick the category of your choice to see the GIFs contained in them.

Alternatively, perform a specific search by entering a keyword or phrase in the search field at the top.
opt for GIF you want to use, and it inserts into your tweet automatically.
It shows up inline on your profile feed and the home feed of users who follow you.

it’s possible for you to insert up to four gifs in a single tweet.
Adding a GIF doesn’t affect your tweet character limit.
Select theXin the upper-right corner of the GIF to delete it if you change your mind.