to share knowledge

to warn people

to be sociable

to request or demand something

to enter a contract

to express emotions

and you can look at the website below which in part says

Why do we talk? And by that I mean, for what reasons do we communicate? Some reasons:

1. to connect

2. to control

3. to express

4. to learn

5. to teach

6. to relate (establish, maintain, and adjust relationships)

7. to share (what’s on our minds, in our hearts, and from our guts)

8. to compliment

9. to experience

10. to be

http://www.knowledgeadvocate.com/blog/?p...




http://www.knowledgeadvocate.com/blog/?p...

to gain information, to give(or share) information, to feel like part of the group, not an outsider. (Communication is essential for emotional well-being), to express deep emotions, to conduct business, to order something(as in a restaurant), to soothe others (people or pets), to gain attention.