When a person gets a ticket to your event they get also get a simple public Conferize user profile. With this they are able to present themselves to other attendees; They can add a personal biography, an image, their location, links to other social network profiles, and work details like their job, organization etc.
Each user decides how much information s/he wants to share, as well as who is able to contact them directly.
On the 'People page' of your event website all attendees gets listed, so they can easily find each other. This happens automatically when using Conferize registration. If you use a third party registration service, you can use the option to invite people to make sure your community builds up and becomes active for your social website.
Promoting the networking option
We have scheduled automatic messages notifying the community when new attendees are added. You can disable and enable these from Manage event > Community > Messages.
You can further promote the networking option and encourage users to contact each other as part of planing their event by simply adding "/people" to your event website link.