Customer service, customer respect, and genuine interest in customer needs, are key.
Too many chat models see only dollar signs, and can't be bothered to chat with any customers without being paid ahead of time. They have "Take me PVT, BB" on Macro. They are the worst of the worst of chat models.
The best chat models look right into the camera, call customers by name, listen to what they want, and express genuine interest in exploring their fantasies. They also know how to balance a customers desire for personal contact information & conversation with work.
Finally, the best chat models bring their A-game to their chat. They always smile, always have fun, and always keep their rooms positive. Chat models having a shitty day just shouldn't bother logging in - customers come to chat sites looking to have fun.
If the Chaturbates and MFC's of the world aren't working out well enough for your chat model, consider buying her her own website :
LiveCamNetwork | The Complete Live Cam And Video Chat Solution. She can set her own rules, and even hire other chat models to work for her and represent her brand.
Good luck!