Do:
Use your first Mickey Script on your rally point. Second on walls. You’ll get them from farming NPC’s later, especially level 10’s so worry about other upgrades then.
Build at least one barrack to level 9 and lots to 4 immediately. You should be farming at least level 3 NPC’s right out of beginner protection.
Upgrade your embassy and check mark to allow your alliance to garrison troops there. Keep doors open to deter attacks and allow your alliance mates to get into your city to back you up. If you’re in an alliance, let them help you.
Upgrade your Beacon Tower to know exactly what attacks are incoming. Otherwise you’ll get vague descriptors of how many troops are coming at you. Your alliance needs to know so they can back you up properly.
Don’t:
Use ballista on players. They are for NPC’s only. The only exception is when sending mech waves but by then you should really know what you’re doing.
Build more than 7 cottages. If you’re building more you’re playing Farmville and will be crushed momentarily when a stronger player finds you.
Concentrate on farm building or holding lakes and grasslands. You will have plenty of food from farming NPC’s. Build lumber mills and eventually tear down all fields but one farm, quarry and iron mine which you’ll want for research.
Send odd numbers on attacks. When you attack someone with 7316 archers, you’ve just told them exactly what you have in your city. Keep your numbers rounded.