1. Protesters expressed joy at the government's decision.

2. In China, firework is played to express joy and happiness during festival.

3. Don't wait for someone else to laugh or express joy.

4. In China firework is played to express joy and happiness during the Spring Festival and on other auspicious occasions.

5. Do not express joy before one sick in pain, for that contrary passion will aggravate his misery.

6. She can hold a conversation, make eye contact, and express joy, anger, sorrow, and happiness. But is she good with kids?

7. I except that he really good luck, what words can express joy after I met you?