Music. He can infer a lot about you from the fact that you are not a musical person. He would understand you differently if you happen to be a huge music lover. Additionally, it can reveal a great deal more about your personality in relation to your musical preferences. Based on your taste in music, he believes he can learn more about you.
4. Your texting style and language.

Your communication style reveals a lot about your personality. And although you might assume that he doesn’t understand the delicate use of a smiley, he does. He is observing your communication styles and messaging habits.
5. Your choice of drink.
Do you drink wine with your steak or do you take scotch? Do you like a glass of red wine every night or do you just consume the alcohol for special occasions?