Startup Idea : Talk to strangers

In today's world, people only know about their friends and follow them. There are many social networking websites that allow you to follow the people you KNOW. For this, you must know something about the person to search for. My idea (app) will help people to search for completely new strangers in a party, conference or any gathering and will give them something so that the user can initiate a sensible talk, all in real-time.