ISKCON Auckland NZ: Friday night Harinam! (Album with photos)
Srila Prabhupada: You are asking what should your preaching work be now that you are attending the university. So the first preaching work is that yourself should become an ideal devotee. Lord Caitanya said that one should first make himself perfect and then attempt to instruct others. There is no point in telling another man to stop smoking if you yourself are smoking cigarettes. Even though you are mixing with all kinds of the student class at the university, you must strictly refrain from the four prohibitive sinful activities, and as an initiated student you must not let a day pass when you do not chant at least 16 rounds of Hare Krsna Mantra. If you can follow just these things nicely that in itself will be strong preaching by behavior. You should also always wear Kunti beads around the neck and wear the marking of tilak. People will inquire from you and you can tell them about Krsna Consciousness and sell them books also. You should also try to associate with the devotees in England and Scotland. If possible, visit the temple on Sundays and whenever you can, and always read my books. >>> Ref. VedaBase => Letter to: Niranjana — Hyderabad 23 April, 1974
Find them here: https://goo.gl/G3hGds