![Well, it's very casual. No dress code or...
Well, it's very casual. No dress code or...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Well, it's very CASUAL. No dress code or...
The Big Bang Theory Season 2, Episode 10
![Is there some new kind of Casual Friday
I don't know about?
Is there some new kind of Casual Friday
I don't know about?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Is there some new kind of Casual Friday
I don't know about?
The Big Bang Theory Season 2, Episode 5
![...and engage in casual physical contact...
...and engage in casual physical contact...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...and engage in CASUAL physical contact...
The Big Bang Theory Season 6, Episode 1
![I've extended a friendly,
casual greeting.
I've extended a friendly,
casual greeting.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I've extended a friendly,
CASUAL greeting.
The Big Bang Theory Season 3, Episode 10
![...to provide Amy with conversation
and casual physical contact.
...to provide Amy with conversation
and casual physical contact.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...to provide Amy with conversation
and CASUAL physical contact.
The Big Bang Theory Season 6, Episode 1