Click on "Go now" to follow on Twitter. It will switch you to Safari. Do not log in, go back to the game and press "Quit Game". When you get back to the game you'll have 3 diamonds! Do the same thing for Facebook "Go now".
Save inventory space
When I was on the other side of the island, I would make sure my inventory was full, then click on the farms. When you do the items from the farm will drop on the ground and won't disappear so you can retrieve them whenever you need them. Even if you leave the game and come back, they're still on the ground.
On the east side now, I save inventory by shooting quails but don't grab them. This is useful for the daily gift quests, like when they ask to make quail soup. I would already have a pile of quails so I don't have to wait for them to regenerate. This goes the same for when chopping down trees for lumber or torches, cutting vines, breaking rocks, etc. This also helps you get closer to the trophy goals and get more diamonds.
Stopping the countdown clock
When you have a timed mission, there is a way of stopping the clock in order to wait for something to finish; (i.e growing some vegs) Start the clock, do what you need to do, then once all you have left is that growing veg, go to the nearest beach and start fishing. The trick is to not catch the fish but not to let it go either! Caution: When using this trick, make sure you stock up loads of food as it is Life consuming!
Time lapse, reduce waiting and refill energy
If you don't want to wait for it too long. try to adjust your date & time in your phone setting.i use it to refill my energy. sometimes to finish cooking food and potion i use this method.So i don't need to wait. But, NEVER USE THIS IF YOU ARE COMPLETING THE TASK WITHIN TIME,you will end up dragging it too much. ;)