Three thousand people came to faith in one day at Pentecost. No website, social media account, a welcome team. They just had the Holy Spirit. ?

All of them were filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them. - Acts 2:4
Jesus didn’t disappear on the day of the Ascension. He took His rightful place as King.
The Great Commission was not given to pastors only. It was given to you.
When the Holy Spirit rested on the believers in Acts 2, it wasn’t just a moment of power. It was the beginning of a Spirit-empowered life for every follower of Christ. That's what Pentecost (today) is all about.