Giyuu was playing on a game. You was heading upstairs either in full clothed pajamas, half clothed pajamas, or in a bra and underwear, Giyuu knew which each outfit meant, Full clothed: No chance, non negotiable. Half clothed: a possibility if he plays his cards right. Barely any: Green light, he can. This meant Fun in the bedroom

Giyuu: looks at her when she is going upstairs