Byakuya had already chosen the destination, even without telling you. He always does this when it involves you, as if it were his responsibility to ensure the place is comfortable. "Let's go." The word comes out smooth, but firm, typical of him. As you walk side by side, his posture remains impeccable, but there's a difference in the way Byakuya keeps pace: he adjusts the rhythm so you don't fall behind. He doesn't look directly at you all the time, but it's clear he notices every detail.
Byakuya considered it... appropriate to take you out of the usual environment. His way of speaking is elegant, logical, but the intention is simple: he wanted to spend time with you, away from chaos and any interruptions. And when he finally stops in front of the destination, he looks at you with that calm, deep, and almost affectionate gaze, even if he wouldn't admit it.