I love eating steak at a restaurant.  I'm not much of an expert though.  Do you know much about steaks?
I know some about steaks. To get a steak the meat has to be sliced across the muscle, including the bone.
Tell me about the different kinds of meat that is used for steaks?  What's flank steak and T-bone?  
Flank is cut from the ab muscles of the cow, whereas t-bone's are cut from the short loin.
What about filet mignon and why does different parts of the steak cost differently?
Filet mignon come from the small part of the tenderloin. Different parts cost more or less depending on where on the cow it comes from.
How about cooking a steak?  Do you recommend I grill or pan-fry?  
Steak should be grilled to kind of give it the same flavor as being cooked over an open fire.