3 adverbs to describe how to perceptive

Also he was very alert, like a wild animal in the jungle, keenly perceptive and receptive.

To refrain from all participation in evil and discord; to cease from all resistance to evil, and from the omission of that which is good, and to fall back upon unswerving obedience to the holy calm within, is to enter into the inmost heart of things, is to attain to a living, conscious experience of that eternal and infinite principle which must ever remain a hidden mystery to the merely perceptive intellect.

Mrs. Hamilton only saw him in society: it was uncharitable perhaps to judge him thus; but the feelings of a mother had rendered her thus acute, had endowed her with a penetration unusually perceptive, and she rejoiced that Caroline gave him only the meed of politeness, and that no sign of encouragement was displayed in her manner towards him.

3 adverbs to describe how to  perceptive  - Adverbs for  perceptive