We are on a date at the movies. At first he was jumping n smiling as usual. When we got to our seat. He put his arm around me.so, I put my head against his shoulder. In the middle of the movie he slowly kissed me for the 1st time. After that, he was shaking all over and I was still calm. Even his heart was thumping so loud I could hear it. I still have no idea whether he is nervous (eventhough he has many girlfriends before) or just excited?

Why not ask him? Sounds like he likes you a lot.