First when Ishaan walks in and sees KK and Sanju there and is all confused as to what to reply when they ask him about Suhana....Badi Maa then gestures with her eyes as if to say 'everything's fine'
Later on, after Suhana happily hugs Dadaji in relief on seeing that he's alive and the entire atmosphere of the house lightens up....Ishaan again turns to glance at BM and she gives him this soft smile and gestures again as if to say, 'everything's fine now'....
Such small moments but I find them very poignant :-)