Sirius + Whoever is Totally Awesome
Sirius was grinning widely. He was happy to see all these people here gathered for his Godson. It made him proud in that odd fatherly-but-not way a Godfather was allowed to feel. Harry was loved by these people in some way or another, and that's all that mattered. Half he knew, and half he would soon meet.
After getting an oddly fruity but tasty drink from the bar, Sirius sat himself down at a table and waited to see what would happen before the birthday boy showed up.