where's the clock

at 6 month Luca not only knows his name , mama and papa he also know where the clock is. i would ask him 鐘鐘在哪裡? ("where's the clock?") in chinese and he would turn his head and look at the clock. At first i thought he was just turning his head to the right... then i reorient him around the room and ask him again and he looked for the clock and smiled.
he also know the word "No!" and i think he knows hands, grandma, bird (we're still working on that), bell and doggy.