Disguises Training? That wasn't something offered at Hogwarts… So what would it be for? Then the way she changes her hair—wandless, wordless magic, seeming different than a spell. These were things Sirius would be interested in. Surely he would have mentioned…?

She continues without missing a beat, so Remus tries to keep up. Especially when she threads her arm through his, and he tries to hide his astonishment bewilderment thrill? awkwardness.

Remus stops sharply at the voice. He returns… his companion's confused look, as he continues sweeping the area. He carefully (subtly, he hopes) slips his wand back to his hand from his sleeve and whispers, "Specialis revelio."