In the interview, Bertinelli particularly recalled lessons White taught her about gratitude.

Betty White and Valerie Bertinelli.Dimitrios Kambouris/WireImage

Betty White, Valerie Bertinelli

“That there is gratitude in everything, absolutely everything. I used to think, ‘Well, I’m grateful because I had a good day today. I’m going to be grateful for that,’ " she explained. “And that’s, ‘Look at me being all grateful for a good day. No. Gratitude is about everything. Gratitude is about finding the goodness in a challenging day.”

She continued, “Betty just oozes gratitude and she glows. I’ve never met another human being that glows. She’s just, she’s not of this world. And we are all blessed to have her here.”

FilmingHot in Clevelandwith White, Bertinelli said, led to constant laughter. She called White’s laugh “the most joyous giggle.”

“That giggle that she had. And when you were the one that got that giggle out of her, I mean, [costar] Jane Leeves and I were always trying to make Betty laugh,” recounted Bertinelli.

Leeves also spoke to PEOPLE for the issue, and echoed Bertinelli’s sentiments about White’s infectious giggle.

“Working opposite her, the best part is the giggling,” recounted Leeves. “She’s a giggler, and that’s sort of the best part of your day is when you can actually make Betty laugh. That’s kind of easy sometimes I have to say.”

In general, Leeves, 60, couldn’t say enough kind words about her former costar.

“You know, I always say if you had to send a representative of the human race to a new planet to introduce to aliens, you’d send Betty. Because she’s just such a great human being, as well as being a talented actress. She’s kind, she’s funny, she’s sexy, she’s accepting. She is forward-thinking. She cares about the planet deeply, and she cares about every living thing deeply.”

Dana Rose Falcone

source: people.com