JOE Biden has been seen in public for the first time since he was diagnosed with an aggressive form of prostate cancer.

Biden put on a brave face and smiled at fans despite his health battle raising questions about his fitness to serve as Commander in Chief.

The former president seemed in good spirits at the airport after traveling to see his grandson, Hunter, graduate.

TikTok user Leah Juliett caught a video of Biden shaking people’s hands as they applauded and gave their well-wishes.

“Random moment of humanity,” wrote the TikToker on the viral video.

Jill Biden reposted the video on her Instagram and wrote, “Thank you for the warm welcome!”

She also shared a family picture featuring Biden as they celebrated his grandson Robert Biden, who appeared to be graduating.