So, I just watched this TED Talk. It was the best 5 minutes I've spent this whole week.
Take just 5 minutes of your time and see this:
So, on this talk, actor Will Stephen says ABSOLUTELY NOTHING. He just waves his hands around, fixes his glasses, shows us some random pictures and moves around the stage.
However, what he DOES says to us is that it doesn't matter WHAT you say, as long as you focus it on HOW you say it.
In a nutshell, you can just talk gibberish, add some confident body language and you WILL sound smart.
Don't believe me?
Watch the video below: