Brahma's heads looked towards Odin. Or rather, it could be said that they looked through him, seeming to be staring at something that stood behind him. The Creator did not bother with words. After all, a conversation between He who represented the transcendent Is and He who drank from Mimir's well was pointless. Conversations only existed as a means to share information; when both parties had complete information, there was no purpose. Frankly, Brahma was disappointed that the child who claimed to "know" had not realized such a simple fact yet. Regardless, between Brahma and Odin, knowledge was exchanged without the transit of communication, simply by the nature of their existence. 

He had no need to remain here any longer. He had served the purpose that the two of them had agreed upon, and as such would retire back to the position of observer. Once more, the Manava-astra's light bathed Brahma's form, and the God was whisked away.