Usagi sat in front of the computer, idly looking through random sites as she waited for Rei and Minako to get to the cafe. Her eyes turned to the black cat sitting next to the computer screen. Some people had given her odd looks at her bringing an animal in, but no one seemed to actually say anything about it. Granted, with the people that were in the place, it wasn't even like she could talk to Luna. Talking cats might change the minds of those that haven't approached just yet.
The moment she heard Rei though, she was out of the chair. Luna jumped onto Usagi's shoulder, settling comfortably there while Usagi grinned at Rei. "Mars!" Because secret identities are important!