Sian offered OB plus a meaningless clam. (Both of us have multiple.) I declined. As much as I'd like to be friendly, OB only benefits him right now. (We don't have our own trade connection mapped out yet, plus he's the only one with a nearby exploring unit.)
There's no land we could reach next to Mack's city, so I moved closer without declaring.
He has a single C1 warrior defending the city. It has 3 hammers invested in a build, so a unit whip is quite likely (and if so I see us turning around). I bet he also has enough gold to upgrade the warrior if he feels it's necessary. I hope he either does both or neither.
I decided to keep our work boat out of Sian's sight. The galley I moved such that it looks kind of like it's going west, and it's on a tile he'll miss if he moves SE-NW. It occurs to me that we should really get ourselves vision of the tile 3NW of Io - a galley could move in from there at any moment and raze our undefended city.
I also built a WC in Triton instead of an Axe. The WC finishes t58 and will actually be able to reach the new city to defend it when it's founded t60. An axe would finish t59 and not be able to defend the new city until t62. Given that Sian has seen our city and galley, I feel this might be important.
In the south, I decided to move our WB around the east side of the island. Reason is basically scouting: we'll have to decide next turn whether the galley keeps E or W, and I feel like we'll need the extra information the WB will provide. If this loses us a little food I think that's OK.
The high GNP this turn is actually YNL (via graphs).
Oh btw I offered YNL OB again this turn.