There is considerable lexical borrowing and linguistic code switching in informal conversation.
Last night I attended the informal opening of a friend's bar on 2nd Avenue.
Many locals dress in period costume to set the tone for the afternoon, but the dress code is informal , so no one needs to feel pressured.
He is undoubtedly a purist, but he writes from the heart in an informal style that welcomes the reader as a close friend.
She now wore a low-cut pink top that flirted with the school's informal dress code.
That kind of thing helps create the friendly, informal atmosphere that makes the blogosphere so much fun to be a part of.
Refreshments were provided and enjoyed by all in a relaxed and informal atmosphere.
Many people dislike his informal style of leadership.
there was an informal discussion afterwards
It should feel like an informal conversation between people with the same goals, all trying to explore and surface good thinking.