Online freelancing takes a lot of skills not only with the skills required for the project but also dealing with clients as well. Here are some tips for online freelancers or virtual assistants:
One pre-requisite for freelance workers is to be able to communicate well in English as a standard medium of communication.
Communicate often with your client, they need and like to be updated always.
Be objective with your replies and straightforward. Make sure that your answers really answers their question.
Be truthful with your words and make sure you complete the project satisfactorily.
Know where the limitations of your tasks as per your agreed scope of the project. There are clients that are abusive which go beyond the contract and still pays at low rate.
Be careful in dealing online where there are scam clients that pretends to be legitimate.