For everyone who asks receives, and he who seeks finds, and to him who knocks it will be opened. If you then, being evil, know how to give good gifts to your children, how much more will your heavenly Father give the Holy Spirit to those who ask Him!
— Luke 11:10,13 (NKJV)

Once you’ve received Jesus Christ as your Lord and Saviour, our Heavenly Father wants to give us, His children, a supernatural ability to lead this new life. He does this through receiving, or baptism in, His Holy Spirit. This is a separate experience from water baptism.

All we have to do to receive Holy Spirit is ask, believe and receive.

Pray Father, I know I was never meant to do life alone in my own power, but in your’s. Please fill me with Your Holy Spirit. By faith, I receive Him right now and welcome Him into my life. Thank you!

Congratulations! Now you’re filled with God’s supernatural power. Some syllables from a language you don’t recognise might rise up from your heart to your mouth. (See 1 Corinthians 14:14.) As you speak them out loud by faith, you’re releasing God’s power from within and building yourself up in the Spirit. You can do this whenever and wherever you like.

It doesn’t really matter whether you felt anything or not when you prayed to receive the Lord and His Spirit. If you believed in your heart that you received, then God’s Word promises you did.

Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them.
— Mark 11:24 (NKJV)