Steve and a few other avengers were raiding a HYDRA base and Steve had been told to check out the basement, see if there was anything, or anyone, down there.

When he came down there, he saw you, a child, huddled into a corner. You were very clearly injured, in several different places.

He slowly approached and knelt down in front of you. "I won't hurt you." He said, almost immediately, setting down his shield.