"From the moment Odin saw Loki, he saw an instrument to end a war. From the moment Loki saw Odin, he saw someone he could love. Loki wanted Odin's approval so much he changed his form to look like an Asgardian. Even as a newborn.
You would have had to see the Avengers to get this. Funny :D BUT,One thing.was he unconscious in Stark tower while they ate shwarma, or was he just tied up somewhere?<<<<< Thor just placed Mjolnir on Loki's chest, and they left him there.