Oh, it looks from the comments you don't just want analysis but practical moves for white here. Well, the board seems to be screaming at me to play b4 since it's with tempo and advancing any pawn on your opponent's king in "caveman" chess seems like it almost has to be good.
As for an overall plan, without spending several minutes actually doing it, I would try to kind of envision how white would like to force a break with his pawns on the queenside and where his rooks and knight should be to support it. It seems to me the most immediate concerns are what to do with the knight since it's in the way of the c-pawn and where you would like to push your three queenside pawns and how the knight can support them. Then, after having some idea of that I'd figure out rook placement but also keep in mind I may have to use them to challenge for control of the d-file so moving them later once things develop more may be a good idea.
Ok, that's all the time I'm going to spend atm. Hopefully strong players weigh in with a lot of detail and we all learn a ton now
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At first the idea of Re1 or Bf4 seem good but, honestly, I think black can play Nd5 possibly followed by e5 which continue to improve his position and defense. An immediate b4 forces the black queen to an awkward square right away. a6 where it is even more in the way of black's defense. Or e5 where it can now be batted around by white's pieces with tempo. The more moves either side can play with tempo that advance the attack against the opposition's king the harder the other side will be able to create sufficient counterplay.