The place you least expect sometimes.
See, if you're asking that question, you can be sure that He is at work in you.
God isn't forcing His hand on anyone, but this type of curiosity originates from God. He's the one who has put the great "why?" in all of us.
But it's up to us to act on this curiosity. It could be that you feel God is totally absent from the world. Keeping asking, keep exploring. It could be that you don't understand why he didn't show up in your particular circumstance. Let Him know your anger. He's big enough.
This curiosity is one of the most beautiful things, should we follow it — a path to greener pastures. But mark my words, this path will be very difficult at times. Just remember God is the one you're headed towards and He Himself is the great Reward.