Wind and tongues of fire are the signs of the presence and power of God

Acts 2:1-13
When the day of Pentecost came, they were all together in one place, Suddenly a sound like the blowing of a violent wind came from heaven and filled the whole house where they were sitting. They saw what seemed to be tongues of fire that separated and came to rest on each of them. All of them where filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them.
They speaking in his own language of gentiles. Some, however, made fun of them and said, "They have had too much wine."
With the coming of  the Holy Spirit at Pentecost the waiting is over. Tongues of flame that all can see denote an inner change which is quickly evident. The apostles and disciples become the new church, full of life and power, utterly different from their former fearful selves. And the changes is permanent.
Why?
Both Hebrew and Greek use the same word for 'wind' and 'Spirit'. The wind and the tongues of flame are signs of the presence and power of God.
The audience of Jews and converts were from widely scattered countries. Now, to their astonishment, each hears his own mother tongue being spoken by these Galileans. The curse of Babel is dramatically reversed.
Holy Spirit came so they became the new church, same as the work of God.
How?
What should I do when Holy Spirit enable me, I will follow the Holy Spirit to serve others and give honor to the Lord.