He's not sure, initially. Not sure of what? Well, he's not sure why he's even here. He didn't care for anyone he could spot, and he's certain those who actually catch him out of the corner of their eyes aren't sure why he's here either. He was never one for social interaction, and showing up to the party... Well, it raised questions.
But Shadow wasn't one to answer them, he ignored any tentative questions asked, batted away with nothing but a grunt. Until Cream gently touches his wrist to get his attention.
Then he answers otherwise. As Cream looks up at him, being shorter than the ebony hedgehog, he raises a brow and replies, "Yes Cream?"
She hesitates for a second, unsure how to word her question before smiling. "We never see you here, Mister Shadow! Why did you finally join the party?" Her question is innocent, friendly. And Shadow remembers why he's fond of the rabbit. She's too kind, too friendly, and unjudging. So vastly different from him. Maybe that was why he let her hug him after he'd saved her and her chao in Cryptic Castle.
"Amy invited me, Cream. Would you... happen to know where she is right now?" Shadow asks the rabbit, who nods and takes his hand, pulling him along through the rooms.
"Yeah, I can't believe Amy invited you... But I'm glad! It's nice to see you again." Cream admits with joy, easily squeezing between people to get where she's going, while Shadow has to shove. It gets amused looks, but no one comments on them.
"Amy! Mister Shadow's here!"
"He is?"