perceptive, insightful
Su majestad es perspicaz.
His Majesty is perceptive.
— Hero (2002)
La criada perspicaz ha salido por un instante.
The perceptive maid has stepped out for a moment.
— La doncella (2016)
Tom es bastante perspicaz.
Tom is quite perceptive.
Eres muy perspicaz.
You are very perceptive.