I do not have in my nearest plans to be a cockatoo. I don't expect to be a cockatoo.

I am honest here. To be honest. or Honestly, ...

Why do I have to ?

I don't really understand what you are trying to say here.

If I were a cockatoo, I would dance on the branches to make everyone’s day brighter,

You don't really need the word "the" here.

If I were a cockatoo, I’d mimic the sounds and make everyone smile.

again, no need for "the"

If I were a cockatoo, I’d be the loudest singer my favorite songs.

I love this!!!

If I were a cockatoo, I would share very interesting stories of different places and their habitants.INHABITANTS.

If I were a cockatoo, I’d be a friend with some humans .

Be careful of punctuation. There should not be a space before the "."

If I were a cockatoo, I would have eaten theeat exotic fruits every day.

But I am just a regular employee working 9-185 in a big company and from my 18 years in Google. I've been at Google for 18 years.

I would like to be a giraffe--they are strong and see far away

Hit the dash twice.

Or I would like to be a dolphin --they are good teamplayers and always active and help each other

hit the dash twice here too

Or I would like to be squirrel- -they plan ahead to be ready to meetfor winter, also thend are good communicators

Double dash.

Do not say that you would like to be a lion or a wolf - --it is long out of date and you will look like an ancient generation Y

You can say "Gen-Y-er"

If I wWere aA (cCarpenter) cCockatoo.

Proper capitalization in your title

I do not have in my nearestany plans to be a cockatoo.

"Any plans" is the natural phrasing.

Why do I have to ?

Remove the extra space.

If I were a cockatoo, I’d be the loudest singer of my favorite songs.

Add “of” to complete the phrase.

If I were a cockatoo, I would share very interesting stories of different places and their inhabitants.

Removed the extra space.
"inhabitants" is the correct spelling.

If I were a cockatoo, I’d be a friends with some humans .

“Be friends with” is the natural phrasing.
Removed extra space before the period.

If I were a cockatoo, I would have eaten the exotic fruits every day.

Use present conditional “would eat” instead of past perfect “would have eaten”

But I am just a regular employee working 9-18 in a big company, and from my 18 years inat Google

Fixed the spelling of "company"
Use “at Google” instead of “in Google”

I know that if you 've been're asked oin an interview, "Which animal would you like to be and why?"

Fix contraction: “you 've been asked” to “you’re asked.”

you should answer the followinng g:

Fixed the spelling of "following"
No need to put a space before the colon.

Or I would like to be a squirrel- they plan ahead to be ready to meet winter, also they are good communicators

Add “a” before “squirrel.”
Fix grammar: “the are” to “they are.”

Do not say that you would like to be a lion or a wolf - it is long out of outdated, and you will look like someone from an ancient gGeneration Y.

“Outdated” is smoother than “long out of date.”
Fixed phrasing for readability.

I do'm not have in my nearest plansplanning to be a cockatoo.

Why do I have to ?

French?

But if I had to, then I would try to make the best of it.

If I were a cockatoo, I’d be the loudest singer of my favorite songs.

or favourite

If I were a cockatoo, I would have eaten the eat exotic fruits every day.

But I am just a regular employee working 9-18 in a big company, and from my 18 years inof experience at Google

I know that if you 've been asked oin an interview, "Which animal would you like to be and why?"

yYou should answer the followinng :

I would like to be a giraffe- - they are strong and can see far away

Or I would like to be a dolphin - they are good teamplayers andbecause they are always active, and help each other

Or I would like to be a squirrel - they plan ahead to be ready to meetrepare for winter, alsond they are good communicators.

Do not say that you would like to be a lion or a wolf - it is long out of date, and you will look like an ancient generation Y