Social media is not a place to sell stuff. No one wants to go to a party only to have someone approach them, trying to sell something. But that doesn't mean you should be secretive about what you do, or what you sell. In fact, all of my life that's the most common question that I am asked in a social situation - *what do you do?*
I'm a Graphic Designer and Illustrator. My website is BradHallArt.com. That's really all I need to say, or should say. In a social setting, such as Google+, all people want to know is if you're for real. If you are, present yourself that way.
By the way, if you don't have a website, or don't use computers at all, say so. People may find it quaint, especially if you're selling something *low-tech*, like handmade stuff. There is no reason to go into a rant about how *you know nothing about how all of that works*. Believe me, the moment you said that you didn't have a website, we knew.
Get a website. You can make them now yourself. No, you don't have to be concerned with social media at this point. That can be helpful in the future.