Sithu Han
From BRGS Wiki
Sithu or C-2 is a misunderstood fool. Everyone makes fun of him by calling him 'China' but this is a harmless joke as Sithu does not care but Joe Gill makes really nasty jokes about Sithu.
The hand thing
Sithu often shakes his hands in a very peculiar way. When-ever he does this there is always the slight feeling inside you that he may just rise up and fly off like a helicopter.