She was a bit OCD when it cames to certain things and sterilizing her hands were one of her many quirks. This one however, she didn't find all that weird though. She could feel him watching her but returned his smile with one of her own.
He wasn't too scary even if cops did kind of make her nervous. Especially if she had accidently stolen his table. That thought made her want to laugh but she didn't because she was pretty sure it would make her seem all the weirder to burst into laughter for no apparent reason.