How can I grill a good steak using mesquite chips?

My father used to make a really good rib eye on the grill, and I know he would mention using mesquite chips. He ped away and I really miss his cooking, can someone tell me how he most likely used these chips? I know he would also soak them before. But I'm not sure how they were used in the grill. Any help would be greatly appreciated! Thanks.