what do u do after knight opening?
Then black eats up the pawn on e4 with a knight.
Keep moving your pieces out. White's bishops are undeveloped and he hasn't castled yet. So, how about trying to do those things. Or try to prevent your opponent from doing. One thing you can think about is whether or not you can successfully play d4. Develop, attack something, open the position for your pieces.
If this position is really a stumper for you, you should look at some games of higher rated players to get a feel for what kinds of things they do in their games. Or post one of your games in the Game Analysis forum and let people give you suggestiions.
(Although there´s definately alot of people here who are more competent to give you advice on this, I will give it a shot.)
At this point you should definately not make a second move with any of your Knights, instead you should do as Loomis said, and try to develop your bishops and castle. And your lightcolored bishop already has a open diagonal so you could either develop it directly or try to open up one for your black bishop. The most obvious way to do this would be to move your d pawn. But in my opinion ( and keep in mind, i haven´t really studied any opening theory and so on) you should not play either the d3 or d4. You should obviously not play d3 since that would close your other bishops diagonal, and with d4 your opponent could force an exchange, by taking your d4 pawn with his e4 followed by you playing Nxd4, him, Nxd4, and you Qxd4. Now Im not entirely sure about this but I would not prefer the position that would follow, since you would have an overdeveloped and unprotected queen. So IMO you should simply develop your lightcoloured bishop, either to c4 or b5, if you play it to b5 then you should be going for the exchange with your opponents knight at c6. That would give your opponent the bishop pair, which is a bit of a weakness for you, but at the same time it would force him into messing up his pawnstructure and your best strategy would probably be to attack that structural weakness, and you would also have the benefit of being able to play d3 without closing a diagonal for your lightsquared bishop. But if you´d rather keep it you could just play c4, and go on from there.
Ok, I get your point about the exchange and you definately seem to be right about whites development and black unability to attack the queen in a sound manner ( the only option i can see to directly attack the queen would be c5, and that really would´nt be good In the long run).
I think my rejection of the d4 move was a bit unreflected and more based on instinctive personal preferences, I´d simply feel more comfortable and "at home" by playing Bb5, or Bc4.