If one would look up in the sky on a clear day, chances are they may see a vapor or trail of smoke that has streaked across the sky. Although no plane is visible at the time, the vapor trail is evidence that a jet has flown overhead.
In the same way, the Holy Ghost leaves an unmistakable trail. If it is active and at work in an individual, there are five obvious signs they will possess.
#1: The individual will become a witness of the personage and works of Jesus Christ. After his resurrection, and before his ascension into heaven, Jesus said to his disciples. "You shall receive power after that the Holy Ghost is come upon you and you shall be witnesses of me in Jerusalem, and in Judea, in Samaria, and to the ends of the earth." (Acts 1:8.)
He did not say "You will do witnessing." He was not describing an activity that his disciples would participate in; rather, he was foretelling of a dramatic change that would take place from within them. Shortly after that, those same disciples spoke in languages for which they were unfamiliar, and proclaimed Christ to a body of foreigners. Their behavior was so unnatural, that the crowds declared, "They were drunken."
Peter, the outspoken one of the twelve, proclaimed the good news and "about three thousands souls were added to the church." See (Acts 2:4.) If an individual is truly under the influence of the Spirit, witnessing comes naturally as a joyous expression of who they are.
#2: Spirit-filled believers are worshippers. The Apostle Paul instructed the Ephesians' Christians, "Be filled with the Spirit, speaking to them in psalms, and hymns, and spiritual songs, singing and making melody in your heart to the Lord, giving thanks always for all things to God the Father, in the name of Jesus Christ." (Ephesians 5:18-20.)
This scripture is an example of worship, both public and private. The spirit-filled believer doesn't have to be enticed into worshipping, nor does he have to be coaxed into attending church. Believers embrace the scripture that encourages them to "forsake not the assembling of ourselves together." Not only does the believer attends church regularly, but he or she thrives on the time spent communicating with the Heavenly Father in prayer.
Imagine a bucket overflowing with water. The moment the bucket is moved, the water will spill out drenching the objects surrounding it. When we are filled with the Spirit, the "living water" that we possess spills out through our voice in song, the movement of our feet in praise, and the clapping of our hands. Those around us (if they are willing souls) are refreshed by the splash.
#3: The believers at the church in Ephesus were also told "to submit to one another in the fear of the Lord." (Ephesians 5:21) Our best example of submission was Jesus Himself. His deity was poured into the shell of humanity when He came to this earth as the propitiation for our sins. "Being in the form of God, He did not consider it robbery to be equal with God, but made Himself of no reputation, taking the form of a servant, and coming in the likeness of man, He humbled Himself and became obedient unto death, even the death of the cross." (Philippians 2:6-8)
Believers are to "let nothing be done through selfish ambition or conceit, but in lowliness of mind let each esteem others better than himself." (Phil. 2:3)

Submission was the lesson of the day for the believers at Ephesus, and for us today. Wives are to submit to
their husbands. Husbands are instructed to love their wives. Children are to obey and submit to their parents, while parents must remain sensitive and responsive to the needs of their children physically, spiritually, and emotionally.
#4: The spirit-filled believer bears fruit. If a fruit tree is alive and healthy, it will produce fruit. In the book of Galatians 5:22, Paul describes the type of fruit yielded by spirit-filled Christians.
Love: Godly love is selflessly seeking the will of the Father. Joy: The inner contentment we experience by having God as the head of our lives. Kindness (goodness): Loving treatment to those who don't deserve it.
Faithfulness: Reliability in service. The kind of dependable commitment God can count on. Self-control: The ability to resist fleshy impulses.
#5: Spirit-filled believers are involved in service for Christ. Those who are spirit-filled, understand that the spirit empowers us for a purpose, namely to serve others. "But the manifestations of the spirit is given to each one for the profit of all." (I Corinthians 12:2)
If we, as believers, use our gifts as we are instructed to, there will be no mistaking who is really in control of our lives. The world is depending on us. We need to "BE THERE".

By Naomi J. Brown