Easyblog Facebook Likes - Not all faces showing

Hello, I wanted to ask about the facebook likes and the faces that are showing. For example, we have a blog post with 42 likes, but only 3 faces are showing. I could not find more info on this anywhere, it would really help if at least 10 were showing rather than 2-3. And the ones showing are always mine and my partner's. How can we see who are the other people that like the post?

http://www.caramelolatindance.co.uk/blog/entry/song-of-the-week-el-rey-de-la-puntualidad-hector-lavoe