To add more flavor to couscous:
Add butter to the sauce pan and place on medium heat. Add the couscous and saute for a minute. Turn off the heat. Boil water separately and add to the couscous along with the salt. Cover and let it sit for 10 minutes. Fluff with a fork.
Some variety of couscous takes more liquid and longer time. Follow the instructions on the package for optimum results.