alot of people i know can grill! yes! hence the reason why i'm always the one indoors and waiting the food to be served, what a slob... i know! so i'm not exactly in a very good position to give out grill advice. but hey wait! the TV has taught me stuff. chefs have taught me stuff through it. so here it is:
when grilling food, always make sure that griller/grater(whatever you guys call it, i have no clue) is oiled, or if no brush, make sure the food is oiled. BUT! make sure the food is dry (pat with a paper towel) and then oiled. cuz the water in the food evaporates fast, and will leave your food really dry and you would want your food to be juicy and nice. also, water is the key thing that makes your food STICK TO THE GRILL and don't come off! so if you want your shrimps to look good, put OIL not water!
this is a must-learn for all sorts of grills, even korean grills, barbecue grills, restaurant grills. for sgporeans- seoul garden.