Hey, looks like you're in a similar place to me...fairly new, no audience. That's the key - your audience. You've got to do something to attract more people to your profile. Commenting can get you noticed, but not by asking to be noticed...you've got to try and add to the conversation.

I'm expecting a slow, hard grind, but I'm hoping that as time passes, I'll start to get some traction and it'll grow quicker. It's always the same way, starting on any social network - you need attention. Getting involved within the community you want to attract will help - find people with the same interests as you.

That's just my 2c, hope it helps. Good luck :)