Hi vidya,
An employee behavior is same for his/her work place. It didn't change company-to-company. But, if any manager or other staff is offering any gift or party or something like that to the whole staff or to the colleagues of his department, then its ok. Everyone should accept it, in case of gift and in case of party, it depends upon you. But, if somebody specifically offers you, then I must say, its not a good thing. You should ask, why only you? Though you are a women, you should more aware about such behavior.