First try to get some focus

 The strategy for black and white around the conquest of the center might differ a bit.

For white:

• ideal is d4 d5. Or even c4, d4, e4, f4
• pieces behind the pawns
• pieces cover c4, d4, e4, f4 (the pawns)
• pieces cover c5, d5, e5, f5 (where the pawns want to go)
• white has more space
• when your center disappears, block the center pawns of black with pieces

For black:

• black allows a broad pawn center
• pawn moves (to build a broad center) let white lag in development
• black blows the center open as soon as possible
• the white pieces aren't ready yet for a confrontation (the price for pawn moves)
• black opt for imbalances in order to play for a win (that's my choice)
• black plays slow openings (my choice) and must play highly aggressive because of that
• the white pawn closest to black is a logical target
• blowing open the center may cost a pawn or two
• focus on e4 and d4 (from blacks perspective)
• b5 can be played to harass Nc3 which weakens whites center
• always be on the lookout for queen trades along the d-file (avoid that) 
• watch out for unprotected pieces behind the pawns when the center blows open
• be aware of the potential conversion of a fluid center into a ridgid one
• be aware of long term outposts when the center becomes ridgid
• be aware of holes between your pawns when they move forward

General:

• moves with an additional punch are preferred