I think Cave man talk, like a monkey but slightly sexier.

The language of luuurrrrvvve ;-)

...as for the first language, tantalizing linguistic and genetic clues suggest that it was rich with clicking and sucking noises now heard only in a few corners of Africa... SOURCE: http://www.sciencemag.org/cgi/content/summary/303/5662/1315

G'day Paullus, Thank you for your question. Noone really knows. Estimates of when language was first spoken range from 2 million years ago in the time of Homo Habilis to 40,000 years ago. I have attached sources for your reference. Regards Wikipedia Language http://en.wikipedia.org/wiki/Language#Origins_of_human_language The Evolution of Language http://home.bluemarble.net/~langmin/miniatures/evolve.htm

English, even though Im Irish! I dont know the Irish Language!

While they have ideas about the first ever written language, we do not have a definitive knowledge of the first language ever spoken since it will be without record.

I say sign language. Although it wasn't spoken, I think the neanderthals mixed in sounds with it.

Gibberish still spoken.

Id say mumbles and jumbles with some clicks. lol

Hmm... two active posts on the same question: http://www.answerbag.com/q_view/1632681

glottogony - the study of the origin of language. From: http://en.wikipedia.org/wiki/Origin_of_language Linguists agree that there are no existing primitive languages and that all modern human populations speak languages of comparable complexity. While existing languages differ in terms of the size of and subjects covered by their lexicons, all possess the grammar and syntax necessary for communication and can invent, translate, or borrow the vocabulary necessary to express the full range of their speakers' concepts.[1][2] All children possess the capacity to learn language and no child is born with a biological predisposition favoring any one language or type of language over another.[3] The evolution of modern human language required both the development of the anatomical apparatus for speech and also neurological changes in the brain to support language itself, but other species have some of these capabilities without full language ability. The emergence of language use is tied to the full acquisition of these capabilities, but archaeological evidence does not provide an entirely clear picture of these events. A major debate surrounding the emergence of language is whether language evolved slowly as these capabilities were acquired, resulting in a period of semi-language, or whether it emerged suddenly once all these capabilities were available. The greatest step in language evolution would have been the progression from primitive, pidgin-like communication to a creole-like language with all the grammar and syntax of modern languages.[5] Many scholars believe that this step could only have been accomplished with some biological change to the brain, such as a mutation. It has been suggested that a gene such as FOXP2 may have undergone a mutation allowing humans to communicate. Evidence suggests that this change took place somewhere in East Africa around 100,000 to 50,000 years ago, which rapidly brought about significant changes that are apparent in the fossil record.[5] There is still some debate as to whether language developed gradually over thousands of years or whether it appeared suddenly.

"Sign"

For apes then humans it was probably grunts including pointing maybe crude drawings!

quite possibly body language. or maybe a series of click sounds using the mouth