As many men,Tony drinks coffee with a LOT of cream and sugar.
Ziva normally drinks tea.
McGee I have still not figured out.
As opposed to the answer above,they are not smug or cockey in my eyes. I mean no disrespect.
They each have their own good personality.
There's one episode where McGee offers Gibbs his coffee and it's a long explanation, which i only remember "Half-caf Sumatra blend". I just can't remember if he had anything else in it!
Tony is Italian, so he is going to load his coffee with cream and sugar, in some episodes Ziva dronks tea, but she is a woman ( a kick butt one(: ), so she also may put some cream and sugar in hers. McGee drinks his black, it was in an episode, but I don't remember it off the top of my head. Hope this helped :)
Ok so in one episode around right after ziva became a liaison officer with NCIS I remember Tony loading his coffee with a LOT of sugar then like 3 to four small cups of creamer. Then other times just black with a LOT of sugar.