How can I achieve perfect grill marks on my steak?

To achieve perfect grill marks on your steak, make sure your grill is preheated to high heat. Place the steak on the grill at a 45-degree angle to the grates and cook for a few minutes. Rotate the steak 90 degrees to create crosshatch marks and continue cooking until desired doneness. Flip the steak and repeat the process on the other side.