Seiko wasn't sure why she was surprised to have spotted Oubai-san in the shopping district. After all everyone needs to shop, but somehow she had never imagined seeing him here. Having seen him she decided it really was only polite to go over and say hello, or suggest that they do something sometime.
She walked over and gave him a small smile. "Hey, Oubai-san, how are you?" she addressed him as politely as she could, after all she knew enough about him to know that being too exuberant would not really make them grow closer anytime soon.