Is he interested in me or not?

This boy is at my school. He doesn't text me often, but whenever we are together, I think he is trying to talk to me. I'm a story writer. I temporarily stopped writing because of my upcoming exam. He asked me to send more stories. And he also explained every error in a story that I had already sent to him. He gave me advice too. Last Thursday, when we were at the bus stop, he didn't get onto the bus; he waited for me, and after me, he got in. I really want to ask him directly about this, but I'm afraid to ask.
Is he interested in me or not?
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