Is it normal to hear these voices?

I realized that sometimes after I hangout with people I experienced this thing where I can hear their voices long after they’ve gone. I can’t hear them super clearly but they keep floating through my mind and I was wondering if this is something the everyone experienced.

I'd say that's "normal", or rather it's not so "abnormal" that it's something to worry about. I've had similar experiences where people's words keep looping over and over again in my head, but it doesn't take my focus off anything and it doesn't really impact my life negatively. I highly doubt it's related to any type of psychosis, more like it's a product of overthinking and frequent rumination.

I've had this. Especially when they're screaming in your ear at the bar!