For instance, consultant Vanessa Van Edwards studied famous TED talks and found that the ones that went viral and became wildly popular featured the speakers who used their hands the most. The least-watched TED talks had an average of 124,000 views and used an average of 272 hand gestures. The top-ranked ones, meanwhile, had an average of 7.4 million views and 465 hand gestures during the same length of time.