They spoke. Their language was called "Hobbitish". This was a sub-dialect of Westron.
they communicate by sticks
All animals communicate. Llamas are no different - they communicate by a combination of noises, body language, and scents.
You don't communicate with me enough.
The past participle of "communicate" is "communicated".
Babies are known to communicate with themselves (as in other babies) but not with fully grown human beings. So yes, they can communicate.
No, Hobbits are fictitious characters
Hobbits are a product of fiction. They never really existed.
Yes, they are hobbits that live in the Shire.
Hobbits can speak because they were able to talk to humans
Hobbits are also known as halflings.
Hobbits did not live in trees. The opposite in fact; they lived in holes in the ground. Some Hobbits lived in houses. Hobbits do not like heights and do not even sleep upstairs.
The three types of hobbits are Harfoots, Stoors, and Fallohides.
J.R.R. Tolkien created hobbits in The Hobbit and The Lord of the Rings.
Hobbits might exist just check out this article: http://www.independent.co.uk/news/science/the-foot-that-may-prove-hobbits-existed-1680405.html
I am sorry to say that Hobbits do not exist in the real world. So Hobbits cannot be mean in real life since they are not in real life.
Hobbits are famous for being small. They are also known for their great hearing and sight.
The term Halfling is used in some parts of Middle Earth to refer to Hobbits.