He is alone, separated, non-comparable with other spirits and He does not share His house. That is why when a body is filled with evil spirits, the person has to manifest whenever Holy spirit is around because He causes the demons to react.
He is the author of all the earthly and heavenly languages. You name it, He can read, write, listen, speak and understand. That's why sometimes we pray to God in tongues and Holy Spirit will help us to communicate with God in whatever language.
He is omniscient where He knows everything about heaven, earth and every single detail about you.
He is omnipotent where He has unlimited power to destroy the evil forces and He has been involved in all the creations such as humans, animals and plants. Genesis 1:26 'Then God said, "Let us make man in our image, in our likeness, and let them rule over the fish of the sea and the birds of the air, over the livestock, over all the earth, and over all the creatures that move along the ground."'
He is omnipresent where he can be in every corner of the earth and there is nowhere you can't search for Him.
He testifies where He speaks to us in our heart, affirming us things that are right and convict us things that are wrong.
He is a spirit of passion. The only thing that will enhance the passion and power of Holy Spirit is UNITY in church. When God's people speak and pray in one voice, nothing is so hard to happen.
As He is omnipotent, He has power over other spirits. As Ps. Anba shared his story, he once went to a bank in PJ and saw someone was doing black magic and selling medicine. As Ps Anba felt something wasn't right spiritually, he prayed in his heart rebuking the spirits, that man immediately felt it and said 'ada orang ganggu saya'. Thus, we can exercise the authority through Holy Spirit.
We as christians should not go against the Holy spirit as it is a serious offence. As the bible says in Ephesian 4:30 "And do not grieve the Holy Spirit of God, with whom you were sealed for the day of redemption" We can grief Holy Spirit if we sin deliberately and this act will bring consequences.