Staring, Smiling and Touching. What shall I do?

This was an unexpected call. And I was definitely unsure how to feel about this guy in my maths class. Anyways yesterday. This guy who doesn't sit far away from me like 4 seats away. Every time I can feel his eyes burning into my brain and he usually sits on his chair properly like your back must be laid on your back seat. He is leaning forward a lot and I would catch him looking at me and staring at me. On Tuesday who would say Am I alright and that and in class he was different he would stare at me and glance at me and talk to me for a little and he looked over and full on stared at me so I looked at him and he continues staring at me with an well a smile or amusing look and we stared for a long time until I broke it and then I had mixed feelings if he liked me. But wasn't sure. 
Today I had double maths which means I had maths for two hours and he continued with his staring and looking and it was end of class and he touched me and says Are you alright again and even my friend caught him looking at me and I am just confused at the moment. When I look at him he looks away sometimes he will actually look at me and smile. He nods at me and all that. I have maths tomorrow I don't know what to do?