What has been important so far in you learn more about percy as a character, his actions or his inner thoughs? (this is an opinion question i just need ideas, and understanding the question)

Well, it's often said that actions speak louder than words. However, his inner thoughts are something that are completely unaltered by any desire to impress others or put on an act. I'd say his thoughts would give you the best idea of his character.
Imagine peering into any random stranger's mind. Do you think you would know them better through what they're thinking rather than just what they say or do?

I hope that helped a little...