Gopis method to worship Krishna

The best method of worship Krishna was exhibited by Gopis. Now what were the worshipable method of Gopis? The Gopis they were not very learned scholars or vedantists or theosophist or mental speculators. None. They were ordinary Village girls and that also not coming of a very high royal family or Bhramin family, they were cowherdsmen. So their father were not very rich but they had several cows that's all. So the Gopis method of Krishna worship was that they could not forget Krishna even for a moment. That was their qualification!!