RJ Barrett said all the right things, but you could sense he can’t wait to become a Knick.

“It would be a lot of fun, definitely, playing in the Garden, those bright lights and they have so much history,’’ the Duke swingman said Tuesday at the BDA Sports Management Pro Day at UCLA, his first comments to the media since the NBA Draft Lottery was held.

Regarding the draft, he said with a big smile, “I can’t wait, I’ve dreamed about it since I was a little kid so I’m really excited.’’

Barrett, 18, is expected to be taken third by the Knicks, and he said his recent combine meeting with Knicks management was “Great. I loved it, I was very comfortable. We had an honest conversation, it was good. [David] Fizdale is a good coach and they have a good crew there.’’

There were times during the session he got excited just hearing about the Knicks.

Knicks legend Bernard King told The Post’s Marc Berman that Barrett has a high basketball IQ, among many other attributes, which thrilled the former Duke star.

“Bernard King said something great about me? Wow, he’s one of the best,” Barrett said. “I’m definitely honored and very thankful.’’