Keep the grill closed as much as possible to hold in the heat. Before putting on the steaks, take a good look at them. Find a "top". When we turn the steaks in a minute you will want to know where that top is in order to get the perfect grill marks.
Before we put that steak on, lets talk about time. If you are looking for a medium rare 1-inch thick steak our cooking times are going to be one minute (four units of one minute). If you want your steak medium well or well done, turn down the heat now to a medium high heat (but leave it hot for the start). Your cooking times are going to be two minutes. If using a thicker steak (but under 2-inches) then the cooking times are going to be 1 1/2 minutes or 3 minutes for medium well or well. If your steak is less than 3/4-inch thick (but more than 1/2-inch) the cooking times are going to be 45 seconds or 1 minute for medium well to well.
Having said that, you need to know your grill. Some grills comfortably hit temperatures over 700 degrees F, while others have trouble mustering 500. If your grill runs at a lower temperature, you might need to increase these times by as much as a factor of 2.
Now, open the grill, put the steak on with the top farthest from you. Meaning that the top of the steak is to the back of the grill or at the 12 o'clock position.
With the steaks on the grill, close the lid and and start counting the time. I'm going to stick with the 1 minute cooking time for this demonstration, but adjust based on your steak thickness and desired doneness.