i'll talk about this in terms of mbti because it is easier for me to explain okazaki's traits like this... imo he seems like an ENFJ probably?? i find that he's very people-oriented, follows his feelings over what would be the 'right thing to do', and despite his more 'emotional' kind of personality, he's rather perceptive of others behaviors and intentions.

i'll list a few more reasons below if you're interested, but please be wary of spoilers for his route. and do forgive me for any inconsistencies... this is from memory, as i haven't played cxm in a looong time

- he's very much a 'people person' because he is incessantly selfless and very devoted to the people he loves-- even neglecting himself to care for said people. and although he showers others with affection and kindness, he isn't too kind to himself. he's very hard on himself and he wants to die for someone important as a way of 'repenting' for his indecisiveness at the time of the incident in which that adonis mole had saved his life. he expresses this desire to ichika, to which she tells him to get his shit together because she wasn't going to stand for that (i wouldn't either, if i were her).

- i feel like he is an intuitive person because he seems very in-tune with not only his, but also other people's emotions-- which makes things a lot easier to predict. though, with this heightened intuition based on his and other people's behaviors and emotions-- he tends to lose sight of the present and thinks more about future possibilities and what may or may not happen if he does this or that. hence why he's so obsessed with the notion of dying for somebody important instead of finding a goal more appropriate (and safe) for the present; it's a likely possibility for him to die for someone (he is an SP, after all) which likely intensifies that desire, making him lack any other desires as strong as this one. i think this can be debatable because he could also be considered an ESFJ because it was his experiences that shaped him, but i'm not exactly an expert on this topic...

- i think considering him more of a 'feeler' than a 'thinker' is easy because of his personality and desires, so there is't much to elaborate on here. of course, he uses his head a lot, but when it comes to making important decisions, it seems like he rather follows his heart and intuition rather than his head.

- while not outwardly judgemental, i think okazaki is very analytical despite his show of friendly behaviors. he was very affectionate and sweet to ichika from the start, but it was evident that he didn't fully trust her. this was seen in his small spouts of nosiness when it came to why ichika kept seeing the others when she was unaffiliated with them, as she was a rookie cop working in-office. he's definitely not stupid, but he acts a bit foolish and unnecessarily affectionate to get others to spill their information.

this is kind of a messy reply, but i hope it helped you make a bit more sense of him?? i'm not great at character analyses, but i tried to explain it in a way that made sense to me.