Why were copper and gold most likely the first metals to be use during the neolithic age?

Gold was known because it occurs native, that is it can be found directly in the world around us. However its uses beyond ornamentation were minimal because it is too soft to hold an edge. Copper was discovered about 3200 B.C. probably accidentally. It is quite unreactive so easy to extract from its ores. One theory is that pieces appeared in the ashes of hunters' fires when they chanced to light them on the right rocks. The short answer as to why they were discovered first is that they are unreactive.