Hugging, he runs his hand gently on your back. In this case, a man feels strong and deep feelings toward you. He thinks you are a close friend of hugs and ready to move on to something more. There is another option: your partner is upset about something and needs to be supported, but can not talk about it. Patting you on the back, he looked forward to the manifestation of affection and tenderness on your part. Respond to him in return and ask whether all his good.
Concluding in his arms, he strongly presses you to her. This means that a man wants intimacy with you. Please note, if hugging you, always looks into your eyes, your relationship to him mean much more than a passionate intimacy. If you have some time together, embrace such may indicate that the man is ready to move to a new stage of relations.
When embracing it in my own way pats you on the back. You think that you're just friends and he behaves with you in the same way as with his friends, and develop these relations in a romantic almost impossible. But all is not lost, if you notice slap a couple of times. Wait, maybe he even hug you as hard as you want.