You first 5.....

[Victoria]

it's something i've picked up watching other civ 6 streams. it seems to have some effect on early relations if your first impression is not atrocious. im not 100% sure but 1 flat gold is pretty trivial anyway.

They have nicely added some more diplo info in the logs so will look at this more.
As I understand it giving 1 gold will possibly give a 1 turn slight benefit but trading appears to give a boot which has not been visible until now.
However, every deal has a random chance of giving a positive meeting diplomacy bonus that's lasts quite a few turns.

 

[hsj]

Ah I see. That makes sense, because giving 1 flat gold seems to speed up the friendly impressions even when there are no visible modifiers.