Yes, but for me It Depends. I'm not great at starting up conversations with people I don't already know, and it makes me uncomfortable. So whether or not I'm at a conference specific to my (fairly niche) field or not makes a huge difference. If I am, I tend to socialize quite a bit as I know a bunch of people even if a bit tangentially. But when I'm at a more standard software conference I tend to keep to myself and utilize "the hallway track" a lot less.