Answer:
Why would you consider yourself to be optimistic or pessimistic?
I, personally would consider myself to be a optimistic person because I often look on the positive side, and just happy generally.
Define both
An optimistic type of person is more outgoing and cheery, whereas a pessimistic person is often negative and lacking happiness.
Example
An example of pessimistic is seeing a glass half empty rather than half full. An optimistic person would see vice versa.
Which one is better?
Obviously an optimistic person is better.
Explain why
Who wants to be around someone that's negative and just never happy? This is exactly what a pessimistic person is like, which nobody would like to be near.