Thor was struggling to control his actions. Being alive for almost 1500 years had caused him to develop some hard-to-shake habits. Especially the greeting. In Asgard, it was commonplace to touch foreheads when meeting new people (as arms were held in t pose, this made sense). However, the people of Midgard had obviously developed a different way of greeting, where they touched hands in what Tony had explained was called “high five”. Despite being explained this cultural difference after almost knocking both Steve and Tony out, he had still manage to headbutt three people, giving one a minor concussion. As he walked into the new room he repeated the mantra that Tony had told him over and over, in an attempt to overcome this supposed “unsavoury habit.” He walked directly over to one of the men in the room and stuck his hand out to shake
‘Hello, I am Thor!’
Bruce heard the voice introducing itself and instinctively reached out to shake the man’s extended hand.
‘I’m Bruce’ he replied distractedly. Standing in the doorway, Tony squealed.