[Harry gives them a polite wave and all, trying to keep his focus, however, on the living person in front of him. Much less distractable that way. Because if he looked and was caught, he can't imagine how others might react as well. Then nothing would get done here.

Here he is wishing he had something to busy himself with. Because the guilt is still there, is still strong. Even with the other's encouraging words.]

It might as well have been me that did it. [What with his connection to Voldemort. But he can't really explain it to those that aren't from home, it just sounds like nonsense.

Like he's a crazy person...]

...But, thank you... It's just something...that's going to take a really long time to get over, I suppose. [It just did happen after all.]