I don't talk about it regularly but, if the topic comes up, I will be honest about it.
In the past, I worked for a small company where we actually had a friendly poker night as a team building exercise. It was pretty low-key, but competitive toward the end. No buy-in, the company put up cash prizes, food and beverages. The early stages were set up so those who were newbies could learn to play.
It was quite a bit of fun but definitely could only be done in a very laid back company.