Hunting activities of human beings:
(a) They could discuss about the nature and behaviour of animals.
(b) They were also able to discuss nature of tools used in hunting.
(c) They can exchange ideas where the specific animals were found.
(d) People now could organise and manage hunting expeditions.
Construction of shelters by human beings:
(a) People now could discuss secure places for construction of their shelter.
(b) They could now get information about the resources available around their surroundings.
(c) People became eligible to get knowledge about the materials used for places for construction of their shelter.
(d) They could also discuss the means to protect their shelter from severe condition.
Signs, symbols , ****, voice shouting, cave painting, engraving on the walls and ceiling on the caves were the other useful modes of communication used for these activities.
