Goby

I use Chrome. My laptop windows 8, has a camera. How do I activate it? Do I need an app for this, or SKYPE?  ... for chat? 

I'm a visual artist. I sign my art by my first name, Willard, but prefer to be called Goby. I'm at Lesson 15 in Lifeprint, and need to practice signing. I don't  know how this works, or what I will need to use the videos. 
I would appreciate any suggestions you have. 
I'm HoH, age related, and getting worse--but I love learning ASL for its own sake.  

I don't understand where I should write my introduction? do I do than by choosing a New Topic?