It is just as important to receive positive feedback well. In fact ,although giving positive feedback is easier than negative,many people still struggle to do it ,so again ,it is important to experss your appreciation .It is also important to receive it gracefully.If someone tells you that you are a brilliant writer ,do not brush it aside a dismissive 'Not really'....Instead just say a straight 'Thank you !' with an expression of pleasure ,if not enthusiasm.