How long should a joint smoke for?

I'm curious to know, in the realm of social smoking, how long is the appropriate duration for a joint to be smoked? Is there a general consensus among smokers on the ideal length of time to enjoy a joint together, or does it vary depending on factors such as the company, the occasion, or even the type of joint being smoked? I'm particularly interested in hearing from those with experience in sharing smokes and their insights into what creates a satisfying and enjoyable smoking experience for all involved.