But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness (Galatians 5:22, ESV)
Just as you can tell the type of a tree by its fruit (apple, orange, etc.); we should be able to tell that someone is indwelled by the Holy Spirit by what kind of fruit is demonstrated in their lives. The Holy Spirit manifests Himself in the changed life that shows love, even to the unlovely; joy, even in the midst of difficult circumstances. Do you want to know what type a person is? Examine the ‘fruit’ that person is demonstrating.
Prayer: Lord, help me to bear the fruit of Your work in my life.