ROTFMLOL!The simple rule of thumb is to take your MBP into a brightly lit room and do a little dance in front of it. If you see a retard in your laptop display then it's glossy.
For me glossy is much like mirror. Very easy to see reflections.
That's why I much prefer a matte screen. Also, a glossy display gives me headaches. On a side note, I wish the MBA came with a matte screen. If so, I would have one today.
BTW, your comments reminded me of this commercial.