The impromptu speech is an extra credit 'spontaneous' speech assignment

Question

The impromptu speech is an extra credit 'spontaneous' speech assignment meant to have limited preparation.

Topics(need to work on any one topic):-

1. Do violent video games contribute to youth violence?

2. Being a vegetarian is healthier than eating meat.

3. Laughter is the most effective medicine

4. Plants, like humans, have emotions

5. Why is a sense of humor a valuable life skill?