out of place

Met a few indian girlfriends to discuss about pass year paper. As I was justifying my answers, girl K ask girl S for clarification. I paused to let them digest. Then they started speaking in their mother tongue and all I understand was "O, double bond, elimination addition". As they were yepping away, suddenly girl S look at me and said

"right??!"

Then I stare at her and shook my head saying "I dunno what r y'all talking about"

So, this is how they feel when we start mandrinize the conversation.