I loved that the last shot of Cap (pre-credits) was him stepping into frame on the Raft, strong, smiling and confident to the delight of his incarcerated friends. A great counterpoint to his first scene in the trilogy, also in civilian clothes, weak, apprehensive, and rejected at the enlistment counter by the government he wanted to assist. He was never the serum, or the suit, he was always just Steve, the guy who walks head on into adversity no matter what.
I love how introspective Evans played him and that both Johnston and the Russos ran with it. Him silently standing on the bridge before the big fight in TWS, reflecting on Bucky's support after his mother's funeral. Then when he stands silently in the church after Peggy's funeral you just know he's playing moments with her back in his mind. Same when T'Challa approaches him in Wakanda. The Russos don't show us but we are left to assume he's reflecting on his relationship with Tony, or possibly Bucky or even Black Widow or any number of things.
He's also shown to be a "people" person in every film of the trilogy. In TWS when Sam shows him and Widow his "resume" Widow immediately keys into the danger of his mission and the fancy pack he wore while Steve only sees Sam's dead wingman and first asks "This is Riley?" Totally ignoring Widow's tactical commentary.