You should be careful in the giving of gifts. Never give a gift in a job interview or prior to a business meeting. Gifts are usually given during special holidays, or as "thank you" for special invitations or events.
At the time of arriving to a special event or social gathering, you may present your gift to the host once the introductions are made. With gift giving, a few rules are in order:
Be modest with your gift, do not buy expensive or extravagant (奢侈的) gifts.
Perishable gifts (a special food from your country, a bottle of wine, candy, flowers) are best if you do not personally know the host very well, but be certain that your gift will not require immediate attention. Your host will be very busy, and you should avoid adding another task to his or her evening. You can usually say something like, "I thought you would like this a little later" when you offer your gift.
Be careful of giving alcohol(含酒精的饮料), a bottle of wine is usually all right if you know your host drinks wine, but hard liquor (whisky, scotch, etc.) should only be given as gifts only when you know the host and are certain that they would welcome such a gift.
Flowers are good, but remember: roses are for personal relationships. Do not give roses. Cut flowers are nice if they are in a vase.
A small cultural gift from your country is usually very appropriate.
Make certain your gift is packaged nicely, with a nice card attached to it.
金玉满堂 Treasures fill the home!
招财进宝 Money and treasures will be plentiful!
生意兴隆 Business flourishes!
一帆风顺 Wishing you every success!
岁岁平安 Peace all year round!
步步高升 Promoting to a higher position!
恭喜发财 Wishing you prosperity!
出入平安 Safe trip wherever you go!
和气生财 Harmony brings wealth!
祝你新的一年快乐幸福! Wish you happiness and prosperity in the coming year!
心想事成 May all your wishes come true!
吉祥如意 Everything goes well!
事业成功，家庭美满! Wish you success in your career and happiness of your family!
国泰民安 The country flourishes and people live in peace !