You can contact fellow participants through LinkedIn’s Find Nearby, a feature to connect with like-minded peers at an event. You will need to use the LinkedIn app for this, you can’t access LinkedIn via your mobile browser; and Bluetooth needs to be turned on. The app will show you people you are already connected with, and people who you need to “request connection” with. Since Bluetooth’s range is only 10m, don’t expect LinkedIn to provide a list showing every participant immediately. The app will help you to know the names of people, who are around you, making it easier to start a conversation. When you leave the Find Nearby screen, it’s turned off and you’re back to your usual level of LinkedIn privacy. We are currently discussing with Xing to provide a similar feature on their app, too.