Do you think he likes me? =)?

Hi ! alright, so I really, really like my guy friend & I didn't actually realize this until him, I, and some of our friends hung out together one day. It was the first time he & I have hung out outside of school. We all just walked around and walked into stores and everything, and he was being so flirtatious with me ! whenever we would sit down to take a break from walking, he'd sit right next to me and smile =) And i was totally comfortable with him, and i started seeing him as more than a friend. we all decided to go eat somewhere, and when we did he sat next to me. We then started playfully arguing with each other about how we were all going to pay for the meal LOL we seriously sounded like a married couple ! Then we all just started talking and laughing, and he rested his head on my shoulder for about 2 minutes. I laughed and patted his head and asked "Are you tired ?" and he said "no not really". Then after 5 minutes he lifted his head back up, then did it again. One of our friends suddenly said "awww i could so see you guys as a couple"...and everyone fell silent and smiled at us. He didn't remove his head from my shoulder. i giggled a little but neither one of us said anything, then someone changed the subject. so do you think he likes me ? or is it hard for you to tell ? I'm 16 and he's 17 by the way, if that helps ! thanks*