nagi sends you messages when you're at home, you spend time chatting on cell phone with him, nagi even flirts with you boldly and jokes with you, he clearly likes you

and when you and nagi met at school, nagi looked nervous and shy when he saw you, he blushed because of how beautiful you were, he even avoided eye contact with you cuz when he saw you because he was so shy and flustered.

nagi's friends pushed him to come closer to you then they left with a sly grin, you can see nagi's shy face