Ah.
Well, you can grill on that, I guess, but doing stir frying on it seems like a very, very interesting challenge. A wok or a frying pan is a good idea, then.
And pyro-manic is right, if you warm your pan up while the food is already in there, everything will get tougher and loose flavour.This goes for grilling meat as well, make sure the grill is hot before you added the meat. If you use a frying pan/skillet, add the butter/oil first, and don't add the meat till the bubbles are gone(ish) and the butter starts to brown. (Oil doesn't brown, just watch the bubbles a bit, I guess.)
Note on all of the above: I know bugger all about English cooking terms, so not every utensil will be properly named.