To the best of my knowledge and understanding, access to the power of the Holy Spirit is an essential and distinctive attribute and privilege of Christians. People from other religions, as well as agnostics and atheists, do not have access to this power. Therefore, it stands to reason that a Christian who is empowered by the Holy Spirit in this unique, privileged way would manifest this reality in ways that would set him/her apart from the rest of the world.
Question: How does the power of the Holy Spirit manifest in Christians, as opposed to everybody else who lacks this power? What are unique and distinctive features through which the power of the Holy Spirit becomes evident and manifest in the lives of Christians, in ways that non-Christians cannot imitate or achieve, at least to the same degree?
Appendix - passages that talk about the power of the Holy Spirit / the power of the Gospel / the power of God
8 But you will receive power when the Holy Spirit has come upon you, and you will be my witnesses in Jerusalem and in all Judea and Samaria, and to the end of the earth.” (Acts 1:8 ESV)
16 For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes, to the Jew first and also to the Greek. 17 For in it the righteousness of God is revealed from faith for faith, as it is written, “The righteous shall live by faith.” (Romans 1:16-17 ESV)
18 For I will not venture to speak of anything except what Christ has accomplished through me to bring the Gentiles to obedience—by word and deed, 19 by the power of signs and wonders, by the power of the Spirit of God—so that from Jerusalem and all the way around to Illyricum I have fulfilled the ministry of the gospel of Christ; (Romans 15:18-19 ESV)
4 and my speech and my message were not in plausible words of wisdom, but in demonstration of the Spirit and of power, 5 so that your faith might not rest in the wisdom of men but in the power of God. (1 Cor 2:4-5 ESV)
19 But I will come to you soon, if the Lord wills, and I will find out not the talk of these arrogant people but their power. 20 For the kingdom of God does not consist in talk but in power. (1 Cor 4:19-20 ESV)
11 All these are empowered by one and the same Spirit, who apportions to each one individually as he wills. (1 Cor 12:11 ESV)
14 And Jesus returned in the power of the Spirit to Galilee, and a report about him went out through all the surrounding country. (Luke 4:14 ESV)
8 But as for me, I am filled with power, with the Spirit of the Lord, and with justice and might, to declare to Jacob his transgression and to Israel his sin. (Micah 3:8 ESV)
5 having the appearance of godliness, but denying its power. Avoid such people. (2 Timothy 3:5 ESV)