The Request Rack
After players finishes rebuilding a house, its residents will begin posting requests to the Request Rack. Completing their requests will reward you with coins and experience points.
Tap on a specific request to see what the Islander needs. A green check mark will appear on a request when you have the items needed to fulfill it.
Once the necessary items have been gathered, click on the brown bag in the bottom right-hand corner of the Request Rack to alert the Islander.
If you don't want to fulfill a request, click on it it and then select the trash can icon to remove it from the rack. A new request will appear after a while. The further you progress in Sunken Secrets, the more requests will appear on the rack.
Islanders will sometimes have special requests. These requests will appear above their head. Click on an Islander to view their request.
A request menu will appear. The menu will display both the items an Islander wants and the amount of time remaining to fulfill this request.
Drag the requested item to the Islander to complete to request. Once a request has been fulfilled, tap on the Islander again to collect the reward.