Skype

I noticed that I had Skype already on my laptop but have never used it. Now I can see why. I started by watching the Youtube video on how to Skype, How to Make Free Calls and every screen that he was displaying, I could not find. I don't know if I was at the wrong place or not. I could not find where to add contacts as he did. I did find my son, but do not ever recall him talking about using this program. No one in my circles talks about this one. So then I proceeded to keep pausing the video and going back and forth between my Skype tab and the video.
I finally was able to get my profile picture set, but still cannot figure out how to find more contacts. I was not able to play around with it as I cannot find anyone that uses it. My son states that he never uses it either, just created the account and that was as far as he went with it.