He (a Krsna conscious person) may even act exactly like the ignorant person, who is too much attached to material activities. BG 1972 purports

Expressions researched:
"He may even act exactly like the ignorant person, who is too much attached to material activities, but one is engaged in such activities for the satisfaction of his sense gratification, whereas the other is engaged for the satisfaction of Kṛṣṇa"

Bhagavad-gita As it is

BG Chapters 1 - 6

A person in Kṛṣṇa consciousness and a person not in Kṛṣṇa consciousness are differentiated by different desires. A Kṛṣṇa conscious person does not do anything which is not conducive to development of Kṛṣṇa consciousness. He may even act exactly like the ignorant person, who is too much attached to material activities, but one is engaged in such activities for the satisfaction of his sense gratification, whereas the other is engaged for the satisfaction of Kṛṣṇa. Therefore, the Kṛṣṇa conscious person is required to show the people how to act and how to engage the results of action for the purpose of Kṛṣṇa consciousness.

BG 3.25 (1972), Translation and Purport

As the ignorant perform their duties with attachment to results, similarly the learned may also act, but without attachment, for the sake of leading people on the right path.

A person in Kṛṣṇa consciousness and a person not in Kṛṣṇa consciousness are differentiated by different desires. A Kṛṣṇa conscious person does not do anything which is not conducive to development of Kṛṣṇa consciousness. He may even act exactly like the ignorant person, who is too much attached to material activities, but one is engaged in such activities for the satisfaction of his sense gratification, whereas the other is engaged for the satisfaction of Kṛṣṇa. Therefore, the Kṛṣṇa conscious person is required to show the people how to act and how to engage the results of action for the purpose of Kṛṣṇa consciousness.