I don't really go to bars, but I once went to one alone on New Year's a few years ago (around 1-2am), and random people started talking to me.
I feel like, as long as you're open and friendly, there's a good chance.
"I could never encapsulate all my cosmicality on my own." -
mr. MFN eXquire. https://imgur.com/4CDGncR