And the boys grew: and Esau was a cunning hunter, a man of the field; and Jacob was a plain man, dwelling in tents.
Genesis 25:27 (KJV)
The King James does the best job capturing the meaning of Genesis 25:27, giving us the difference between Jacob and Esau:
Esau is tricky. He is crafty and clever, knowing how animals think and behave.
Jacob is plain. Simple. Perhaps… not crafty at all.