Be careful when you say chicken in Chinese. It's 'Ji'. I assume you will say it in a restauant, rather then hotel, where the same word will be understood as whore.
China is too big to depict. Then i will assume you will concentrate on the old Beijing arount culture. Even Beijing is too big to figure out. 'Stupid tourists' will go to the summer palace, the forbiden city, the great walls (careful transportations is needed). Eatting the Beijing roast duck is a must, better with some friends together.
Let me know if you have any more detailed questions.