First "real" camera

I personally recommend Samsung NX10/20 (for full body) or NX200/210/1000 (for slim body), it is a good camera to learn on.

If you dont like it then it was not that expensive anyway (and you can sell it too), and if you go to another camera system you can also keep it and use it as a pocket camera using the pancake lenses they have (which currently have the most pancake lenses in the m4/3 & APS-C catagory)

The best advice is buy a cheap one (used or new) which you can change the aperture setting, and easy to handle with good ergonomics. Do note you "WILL" end up buying more camera bodies if you start to like it.