Caitanya Mahaprabhu has given certainly the chanting, but so far His mission is concerned, He said that “Every one of you become guru.” Amara ajnaya guru hana tara’ ei desa [Cc. Madhya 7.128]. And deliver, preach, that people understand what is Krsna.

amara ajnaya guru hana tara’ ei desa
yare dekha, tare kaha ‘krsna’-upadesa
[Cc. Madhya 7.128]

Prthivite ache yata nagaradi. That is His mission. It is not that “Become a big Vaisnava and sit down and imitate.” This is all rascaldom. So don’t follow this thing. So at least we cannot advise you in that way. We have learned from our Guru Maharaja that preaching is very, very important thing, and when one is actually an experienced preacher, then he is able to chant Hare Krsna mantra without any offense. Before that, this so-called chanting of Hare Krsna mantra, you may practice without any offenses… And giving up all other business to make a show of a big Vaisnava, that is not required.

(From Srila Prabhupada’s lecture on Srimad-Bhagavatam 1.7.19 — September 16, 1976, Vrndavana)