What can you discuss with a girl in chat-roulettes like Omegle and Chatroulette? You should interest a girl from the first seconds, because the boring beginning of the conversation will make her to switch to another interlocutor. Start the conversation with a good question. So you will attract the attention of the girl and move to a new level of random dating.
Rules of making the question
People almost always do not know what to do when they see their interlocutors for the first time in the video chat. If the interlocutors do not have the goal to turn the conversation into a joke, they ask basic questions. What is your name? Where do you live? How old are you? What is your hobby?