It's really easy. Ris - AWN.
Ris rhymes with Kiss.
awn like in Dawn. or even On, like On and Off.
Now say it together. Emphasis is in the second syllable.
In case you were wondering. Because for some reason a lot of people like to put a bird in there or something. And I have never for the life of me associated myself with a Swan.
I've had people misspell my alias ever since I started using it back in 1999. Though I've had people call me Ris, Sawny, or whatever.
Just thought maybe you would like to know. In case all of this time you were wondering.