God is always making 
Himself

known - Just look and listen!

Romans 1 v 20, 21

"For since the creation of the world His invisible attributes are clearly seen, being understood by the things that are made, even His eternal power and Godhead, so that they are without excuse, because, although they knew God, they did not glorify Him as God, nor were thankful, but became futile in their thoughts, and their foolish hearts were darkened."

I think this is the key - glorifying Him and thanking Him. Again you may say 

"it's too simple", but no, He doesn't make it hard for us. We make
it complicated.

 100 v 4, 5
"Enter into His gates with thanksgiving,
And into His courts with praise.
Be thankful to Him, and bless His name.
For the Lord is good;
His mercy is everlasting,
And His truth endures to all generations."

Wow! He is Amazing!!!

So put a song of thanksgiving on your lips, sing to Him,
He loves rejoicing with you. Look for the joys in your day, He puts
them there and waits for you to discover them.