Hrdayananda: He wants to know how we can increase our desire for sankirtana.

Prabhupada: By performing sankirtana. Just like if a man drinks and if he drinks, drinks, then you become a drunkard. (laughter) Drink more and you become drunkard. Similarly, chant more and you become perfect chanter.

From Srila Prabhupada’s lecture on Bhagavad-gita 2.11 — Mexico, February 11, 1975