We learn a little more about dialectic. The questioner allows the questioned to feel in charge of the conversation, but it is in fact the questioner who steers the conversation by means of the type of questions asked. One of the examples in this dialogue is the sustained attempt by Socrates to turn every concept Euthyphro raises into a version of techne. He has construed Euthyphro's therapeia as techne, and now construes Euthyphro's praying and doing things pleasing to the gods as an episteme of praying and sacrificing, where episteme (knowledge, understanding) stands in for techne (the practical application of episteme). Euthyphro actually reveals his notion of the holy, and we may begin to see the consistent behaviour of Euthyphro throughout the dialogue.
