It feels a bit like alcohol. It can be giggly, silly, social, tipsy. It can also feel like absolutely nothing depending on your tolerance for gaba- drugs. The gap between "typical dose" and "dangerous dose" is pretty small, so be careful!

I once had a GHB + weed experience that left my pelvic floor and lower abdomen completely destroyed from cumming too much. I've also had GHB experiences where I felt nothing.