Well in the first one you just made a cameo appearance, but you were sorta rude (totally out of character) so i'd say a nightmate.
The second one, you and the bang gang ran a laundry shop...travelled between gigs in a personal helicopter and were mentoring me, that one was kinda cool!
Cheerio, Hola, Salutations, or which ever cliche greeting you prefer:) Swing by and holler at ya boy,guy,man,mate,homie,pal....whateverword you prefer hahaha