the 1st order of business is to save my starting location and explore for 15 turns or so to work out roughly where i will be building my 1st several cities. forward planning is crucial. if i can, and as early as possible i will build a city with good food/shield production purely to build settlers for expansion.
i try not to waste more than 3 turns to found my capital.
the best starting locations are WHALES and/or SILK, and grasslands. without any of these, your on the backfoot strate away.
once ive got my capital, i focus on production and get building a settler, after that, i focus on science and try to get monarchy as soon as possible.
i usually try to discover tech in this order (often start with alphabet/bronze working)
1,cerimonial burial
2,code of laws
3,monarchy
4,writing - build dips to explore/pop huts - i dont explore much untill this point
5,literacy
6,mysticism
7,philosophy
8,currency/masonary/maths dependent on what ive popped from huts
after this, its the needs of my civ that determine what i go for.
if i can i (with maths) take the science route university/theory of gravity/astronomy
if im lacking resources, i go for pottery and seafaring and build harbors in all my cities.
the 1st 7 techs are ALWAYS in the same order.
when i manage to pull this off, i oftan find myself miles ahead of the other tribes.