Giyuu never showed emotions or anything. He was always blanked faced. His blue eyes would just stare at the person talking or look away.

This time though as you were talking to him as usual. You always talk to him before going on a mission

this time He was listening and focused on what you were saying of course he didn't talk and he looked blank as usual but him listening made it special His blue eyes staring into your eyes Showing he was listening