Yes, they responded to the tongues - that is how their attention was given to Peter. News traveled really quickly that something miraculous was happening and at least 3000 Jews who had come to the required feast of weeks showed up to see it. They were AMAZED AND MARVELED because the disciples were speaking in other languages - their own native languages that they would not know, being Galileans. Then they started asking questions - what is this? what is going on? They doubted what they were seeing. Some even began to mock because it was "other worldly". Then Peter got up and began to explain what was happening and why - the fulfillment of the prophecy of Joel, the promise of Christ that they would be baptized with the Holy Spirit, and then the Gospel. It was the sign of tongues that got their attention - a sign to the unbelieving Jews.
The story is so amazing, I am really curious why you are arguing with the text! :idunno:
Passages in Matthew 12; Acts 3; Hebrews 2; etc., make it obvious that had only been a foretaste of their world to come.
While passages in Matthew 12; Luke 13; etc., make it just as obvious why that foretaste had been only temporary.