All you need is a webcam (a low cost device that provides real time video & audio to a PC or computer network), a web browser and an Internet connection.
With the help of webcams people got an opportunity for distant communication by means of accessible web interfaces called a web chat or cam chat, or special software programs like Skype.
Second, you can write a text message to a guy or a girl, leave him / her a greeting, send a gift, etc.
All this is possible if you have registered on the site and fill your profile.
First of all, we are talking about the rules of conduct.
Be aware that these sites are visited not only interesting and cultured people, but also those who just want to have a fun.