How would you handle this situation with your best friend that you joke with all the time versus a regular friend?

What would you do, what would you say, how would you react, if you were friend who is Visually impaired was tapping their cane , feeling around everywhere with their hands trying to find an empty seat in a crowded room if they ask for your help? How would you respond if it was a regular friend versus a BFF friend that you joke around with often