Jim Kirk doing everything he can to be the best captain possible for his crew.
Jim Kirk learning the names and preferences of everyone on his ship, taking the time to learn about their past, their family, their hopes for the future, and never forgetting a single detail.
Jim Kirk staying up all night to study books and cases so he can be ready for anything, so he can help his people when they have problems they can’t solve, so he can make sure he’s going to be useful.
Jim Kirk taking on more hours than he should so it’s easy for people to arrange time off, staying on shift with only coffee to keep him going because someone was sick and why ask someone else to cover them when he can do it himself.
Jim Kirk doing all that and never complaining, or letting on just how tired he is, because he knows he’s not the captain they deserve, but God, he wants to be.