I keep getting told I don't talk much. How do I overcome this?

1. I prefer to listen than talk (2 ears, 1 mouth)
2. People claim they don't know much about me (I don't want them to)
3. I only really speak to add value to a conversation (quality over quantity)
4. I find most people talk the talk but don't walk the walk (Action > Words)

Personally, I don't think I talk too little. I think everyone else talks too much.

How do I overcome this? Should I just acknowledge it, smile and carry on as usual?