How did you choose your RS name?

I chose the name Lithe whilst I was doing agility on OSRS. At the time I had just found out about the rooftop courses, and had managed to get agility up to be my highest level. I was checking to see if the name Agile was taken (which it was), so I decided to look up a thesaurus to see what I could find or even opt for instead. Lithe was the first name I saw, and decided to try it. To my luck, it was free. So I jumped on to it straight away.

I originally opted for the name Lithe just because it does mean graceful, among other things too. But mainly because it referred to being graceful.