Feed her with a baby spoon, She will probably spit it out at first, but sort of gently scoop the cereal back up and try again. You can check this website. At first I was unsure of whether or not they meant put the food in a bottle or spoon, until they mentioned the other foods you should begin feeding the baby after the rice cereal.
http://life.familyeducation.com/baby/foods/40674.html -
I remember my mom feeding me with a spoon, I can still feel the spoon scraping up my chin, I fed my son his first cereal (pablum) with a spoon, but gently scraped the food off his chin. I checked the website to ensure things hadn't changed in 50 years.