Any sores in your mouth, etc.
Aj
what kind of symptoms should i look out for?
I wouldn't be worried at all if you have no symptoms.
Aj
Well how worried should I be that she did brief oral sex on me?
Oral sex is generally low risk for STDs. If you performed cunnilingus, there's a small risk for pharyngeal gonorrhea and syphilis, but the odds are very low that this happened. If you are going to worry, you could always get tested to ease your mind, but it's probably not necessary. However, if you are sexually active and not in monogomous relationship, getting screened yearly for STDs is a very good idea.
Best,
Em