After years as consultant/developer, I started my own company less than 2 years ago. I now find myself alone at some big conference for the next couple of days, supposedly to get people interested into my services, but I could not afford a booth. How do I go about it...?
If the conference has an app or some sort of attendee list I would take the time to go through it and ping everyone who you think could be a potential client and set up a time to meet. When I go to a conference I pretty rarely actually go to the talks, I mostly am meeting people I set meetings up with beforehand or going to the networking bits.