Of Icahn's 39 tweets so far, 25 mention publicly traded stocks. Since shareholders of those stocks often search Twitter for their respective cashtags—ticker symbols accompanied by a dollar sign, like $GE—it would be wise for Icahn to include them.
This means Icahn's tweets will show up in a Twitter search for these symbols. That'll speed up the process of getting this information to followers and non-followers alike, and he'll look more social savvy doing it. Cashtags are considered to be hashtags for the financial industry.
One of the most unforgettable interactions on Twitter took place between billionaire Boone Pickens and millionaire rap star Drake.
"The first million is the hardest," the 25-year old artist posted to Twitter in May 2012.
"The first billion is a helluva lot harder," Pickens shot back.
The response went on to receive 21,000 retweets and has forever placed Pickens in the social media history books – all because of a simple interaction.
Icahn, who isn't afraid to speak his mind, would really up his social game by responding to tweets from his followers and other financial titans. Unfortunately for those looking for a repeat of Pickens-Drake, Icahn can't converse with investor Bill Ackman on Twitter; Ackman doesn't have an account. Yet.
What is Icahn reading these days?
Aside from sharing his latest investments and upcoming TV appearances, Icahn could share a few of his favorite articles and books each week, giving the world a peek into what's on his coffee table.
Behind-the-scenes information goes a long way on Twitter. We'll even take an Instagram-filtered snaphot of his lunch… occasionally.
(Mr. Icahn, if you are reading this piece, feel free to share it, too.)
Currently, visitors to Icahn's Twitter feed are greeted by a snazzy profile picture, a witty bio and a link to Icahn Enterprises' web site.