Paul was what people called a "perfectionist". He was through and through a top class trainer and student. Although he much preferred travelling, the Poké school was a great experience for trainers who want to improve themselves. Even before entering the teenager, he had always been an edge and rude fellow. Now when he is 16, at the prime of his teenages, his rebellious phase has also reached its peak. No one can escape his wrath when it is unleashed, which in his case, was quite often.
Nonetheless, he was a top student. He was stubborn afterall, he couldn't have anyone taking the best from him. So, when he saw his name on the board at the second position, he couldn't stay still, he had to see the face, the extra ordinary face that took his spot as the top academic scorer.