Always maintain eye contact. When sucking cock, look your Sir in the eye. Show him you know your place, that you know that this is for him. Don`t get too carried away with the cock, yes it is awesome to finally be able to lick it, suck it and touch it. But focus on your Sir. He is the reason you are down there, he should like what you do. Look him in the eyes and show him that this is not just another job. This is what you want, what you crave. You are doing this for him, to make him feel good.