She made a face at him and he grinned, sauntering off, hands still in his pockets. He stopped, looking back over his shoulder. "You coming or what?" he teased. They set off down the hallway, walking in companionable silence- silence that didn't feel the slightest bit awkward. Interesting. Things almost felt...normal.
Finally, they reached the wall where Sirius knew the entrance was and he walked back and forth in front of it three times, thinking We need somewhere to talk that we can't get interrupted or spied upon.