How to make a first good impression ?

When i watched this video, I have been suprised to learn that when we meet and employer for the first time, our body language can tell a lot about our personnality. By the way that that we are walking in the room, they can see if we are someone confident or not. I think that this is a very good advice, because i did not know it before, and now that I am thinking about it, it makes a lot of sense. I think that is a strategy that i will use now, because if i wanna do a first good impression, i have to show them that I am confident and that I am ready to start a internship with them ! (:

There here, if you want also to watch the video! :)
Enjoy!