Here’s a video that will help you do that. Distracting yourself is a classic coping mechanism for a reason: breathing exercises and focusing on objects around you can reduce the fear you’re feeling while you wait for the attack to end. This video will help you learn these techniques, and if you’re having a panic attack right now, it’s also a distraction itself.
That said, it’s not a replacement for proper mental health care. While it’s possible to have a one-off panic attack for no particular reason, often panic attacks are part of an anxiety disorder or another mental health condition. Seek mental health help, from a therapist or from your doctor, if the attacks continue or if you’re concerned.