This guide also applies to melee as well, as both fox share similar attributes, except in PM where fox's shine, up b and grab differ from melee. Regardless, the way of play is basically consistent between the two titles. 

Here are video guides which truly exemplify what it means to be a good and effective fox.

https://www.youtube.com/watch?v=F6QSjotZ2Lk

https://www.youtube.com/watch?v=4gh_dPPh78s

https://www.youtube.com/watch?v=DYMgXoAokQE

https://www.youtube.com/watch?v=R7L1QOjv1d0&feature=youtu.be&t=55 

https://www.youtube.com/watch?v=Rgezcct7pY0