pro-tip: loop your legs and arms through the handles or straps of the bags you're traveling with to prevent people from stealing them while you sleep e.g. put

pro-tip: loop your legs and arms through the handles or straps of the bags you're traveling with to prevent people from stealing them while you sleep e.g. put your backpack on your lap against your chest and cross your arms through the straps, stick your leg through the loop of a duffel bag handle, etc