Stan's conversation with Bunty

This wad one if the most if not the only sensible conversation Stan has ever had with anyone on this show. He was so open and honest.

In every other conversation- even with sajid and shiv- he seems so awkward, not knowing what to say. His response is always - Kya baat karlera hai bro, Aisa kuch nahi hai bro, Mein doosre trip mein tha etc etc

Btw whats this rule about not talking Bahar ki baat. If thats the case how does shalin know all of Tina's friends, how did sajid know about Fahman.