After the encounter when going on board the ship, Silja tries to take a closer look at him without seeming to stare, just to check if those maybe are someone else's clothes...
Usually when her first impression of someone is that something's odd about the person, she trusts her instinct. But seeing he would have nowhere to flee for quite a while now, and she's just beginning ti study the people around her, there's no need to come too close to anyone, either.