ThirdSo you have found the perfect spot and your off.
Set science to 80% as this means you still get 1 gold per turn so you earn money and learning same time. I usually research Warrior Code and then something that gives me horses.
Build roads, dont worry about irrigation at this stage - build and explore.
Build warriors, crappy regular warriors...send them out and find the new world. Build 2-3 and while this is happening have your worker build a road to the place you will build your 2nd city.
Build a barracks after settler and while your city recovers. Then build veteran ARCHERS not SPEARMEN. I never build defensive units until riflemen. Waste of time. attack, attack attack!
Build more settlers, expand, find your nearest enemy and build up your army 5-6 archers and kill em..and your off!
GOVERNMENTS
From despotism I only go to REPUBLIC. One change of government otherwise it takes too long. Republic is good for wars and non wars.
If you chose a civ where you can change in 1 turn that is different and you would use that but for a civ like the french it is one change only.
AS THE GAME PROGRESSES
I check F11, F8 and F3
Check F11 for no of happy people, my rank in terms of land held, pollution (comes later, tells you how many squares of pollution you need to find and cure each turn), Literarcy %.
F8 tells me my score against my opponents, how im going
F3 - gives me idea of how strong or weak, what sort of numbers. I dont worry too much by what the adviser tells me.
BUILD EMBASSYS (spg?)
Best way to find the enemy capital and best way to keep up to date with who they are at war with and who they have KPP with.
BUILD LIBRARIES and OTHER HAPPY PLACES
such as temples, collessums, cathederals etc...ADDS TO YOUR FINAL SCORE of happy people.
TRADE with nearby Civs.
Keep going back to F2 and see if you can do a deal with your neighbours - more happy people means a bigger score.
EARLY ON i Trade techs with the AI.
Remember the AI gang up on you so dont be afraid to trade a new tech with every AI you have met. Check what they offer and accept the best and then go back to the others, their offer will decrease but you can still score money.
Later on I dont trade as I like to keep ahead of them.
HINT: learning new techs I find it best to work along a line of new techs, that way you can get in front of them and trade that tech for something on another line that is further back. ie once learned what ever mustkets are GO TO cannons or the next in line.
Cheers and happy hunting.