To do something perceptively is to do it in a perceptive way: you notice quickly and you understand well. She wrote perceptively about her grandmother. He listened perceptively and then asked the right question. It is a rather formal, written word; in speech people more often just say someone “really understood” or “noticed a lot.” Though actually, it is a different word from perceptibly. Perceptively praises the mind of the person doing the noticing. Perceptibly only says that a change or difference can be noticed.

敏銳地、有洞察力地