Wanda took strength from her brothers closeness and used it to help herself keep calm before the elevator doors opened and her brother all but disappeared. Walking from the elevator herself she remained alert for any threats to either of them as the blur that was her brother ensured her path was unheeded.
The door at the end of the corridor was the one she was aiming for, that was where he was. Schmidt. The one who would give them answers, whether he wanted to or not. Wanda was persuasive after all.