Pick the right eggplant: Choose eggplants that are firm, glossy, and free of blemishes or bruises. The skin should be smooth and taut, and the stem should beand fresh-looking.Slice the eggplant evenly: Cut the eggplant into slices that are even in thickness, about 1/2 inch thick. This will ensure that they cook evenly on the grill.Soak the eggplant: Before grilling, soak the eggplant slices in cold salted water for about 10-15 minutes. This will help to remove any bitterness from the eggplant.Use a grill basket: Use a grill basket to cook the eggplant on the grill. This will prevent them from falling through the grates and make flipping them easier.Don't overcook: Cook the eggplant until it is tender and lightly browned, but not mushy or burnt. Overcooking can make the eggplant texture unpleasant and too soft.