When grilling, make sure not to overcrowd your grill. By doing so, the air can't circulate around each piece of food and the food won't cook properly. You don't want your food to not be cooked evenly. By doing so, this also makes sure that the fire has enough air to fuel it. The last thing you need when having a party is for the fire to go out.
*Image from Culinary Space
Cooking With Mickey