A quick search for 'GIF button' on Twitter shows that many users have been given access to the experimental feature, media reported.

Twitter user Phil Pearlman told the technology media company that when he clicked the button, he was shown a selection of ready-made GIFs, including some categorised by mood and others that were trending.

The reaction to the experiment has been pretty positive, according to media.

In the past, Facebook and Yahoo have partnered with third-parties like Giphy and Tumblr to integrate catalogues of GIFs on their messaging apps. Although Twitter has not issued any official statement on the experimental feature, allowing sponsored GIFs on the micro blogging site could offer new branding opportunities for the company.