[ He moves so he can make his hand meet his. Almost kind of like when someone is giving a high-five, but his momentum was too slow for that, and so it's just... him simply patting his hand flat against the red head's instead.

He remembers seeing two of his friends (Kashuu and Yamatonokami) do it back at the citadel. ]

Because of this. A few friends did this back at home after successful teamwork, and you helped me figure out something important when it was a bit hard to think things through, so why not?