Uniform Stealing Board

In Blood+, Amshel kills Liza while she's in the bathroom and then tosses her naked body out of the moving train they're on. Using his shapeshifting abilities and the clothes he took off Liza's corpse, he's able to pass himself off as her and get closer to Saya.
https://www.youtube.com/watch?v=kOUTnNmF5uc
Start at 10.30