Awareness comes by knowing scriptures. First by reading or hearing the word of God. 

Romans 10:10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
 
Mindfulness comes by memorizing- God begins by writing His Word on your heart. 
Hebrews 10:16 

This is the covenant I will make with them after that time, says the Lord. I will put my laws in their hearts, and I will write them on their minds.

The Holy Spirit Informs us as we listen with our heart, mind and soul.

In 2 Timothy 3:16, Paul states, “All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness.”
Peter replied, “Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit.

Act 1:8 But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.”
and
John16:13;
the Spirit of Truth, comes, He will guide you into all truth” (John 16:13).

Be Watchful as you are being watched
Ephesians 5:8 
For you were once darkness, but now you are light in the Lord. Live as children of light.
Acts 20:28
Keep watch over yourselves and all the flock of which the Holy Spirit has made you overseers. Be shepherds of the church of God, which he bought with his own blood.

In the Gospel of Matthew, Jesus says: "Nor do they light a lamp and then put it under a bushel basket; it is set on a lampstand, where it gives light to all in the house. Just so, your light must shine before others, that they may see your good deeds and glorify your heavenly Father."