What is the CP and what isn't

Sometimes Oaties behaviour, I can't tell what is the CP and what is not... Like his anger...  Is he just a hot head?  Or can he not help it?   When it comes to thinking for himself...  Some days he does it and Some days he doesn't...  Even with 3 other siblings older and younger to compare to...  I can't tell.   I do know he is exceptionally intelligent...  His relaxed/at home conversations still isn't spontaneous like my other 3.   He will ask for drinks etc...  Or if he wants to do something specific...  Sometimes he will tell me about this day on his own....  It's really quite sporadic...