Actor Kareena Kapoor functions on passion and if that ever runs out, she doesn't see herself continuing to perform anymore. Kareena, who has been in the industry for more than two decades, said she'll be ready to bow out of acting the day she realises she isn't excited for work. At the Express Adda in Mumbai, Kareena said she has hopefully grown as a performer and person since she made her debut with Refugee as a 19-year-old but if there's something that has remained intact it's her zeal to act. Kareena said she still doesn't want to "lose that excitement". "If I lose that, then I feel I should hang up my boots. Because the excitement of wanting to be on set, the excitement of wanting to face the camera still, it's still there at 43. But I know that the day that's not there, then I know that I'm not going to work because I'm that kind of person. "I'm very, very passionate about everything I do. I'm passionate about a meal I eat. I'm passionate when I'm out with my friends or when I travel. That's the person I am. So if a day comes that I realise that I'm somehow losing that, then it's time for retirement." When asked if retirement is something she would consider, Kareena added, "Hopefully at 83 or 93, I don't know! I want to keep working, I want to keep doing that." The actor said she has shifted gears and is gearing to make her digital debut with the Netflix film Jaane Jaan. She also has filmmaker Hansal Mehta's next The Buckingham Murders, which will be screened at the British Film Festival and is eyeing a limited theatrical screening in India later this year. "I've produced that film. It is a small English kind of movie, which I've done with Hansal Mehta. It's completely in English. So we thought we'd screen it in the festival first because it has an audience and then maybe in 60, 70 select cinemas in December so people could watch it because it's different. I'm trying to do different things now, to keep reigniting. That's also important," she added.