President Donald Trump tweets an average of 12 times per day. His often stream-of-consciousness use of the social media platform has become one of the defining aspects of his presidency. He announces resignations and firings. He attacks lawmakers, journalists, and communities. He perpetuates conspiracy theories and false talking points.

But what he doesn't do often is "like" other people's tweets. He's only liked four tweets using his personal account, one of which is his own.

At least, he doesn't like them many tweets in the traditional way, by simply tapping the heart icon below a tweet to commend it or save it for later.

According to a report from Politico, Trump routinely has his staff print out his favorite tweets of the day. He often signs them and sends them to the author.

One of the president's staunchest allies, Republican Congressman Matt Gaetz of Florida, received a paper copy of one of his tweets signed by the president. It now hangs, framed, in his office.

While by far not the most harmful of the president's idiosyncrasies, people can't get past just how bizarre and needlessly complex the practice is.