How Do We Know "Break Bread" In Acts 20:7 Is Referring To The Lord's Supper?

Acts 20:7 reads “And upon the first day of the week, when the disciples came together to break bread, Paul preached unto them, ready to depart on the morrow; and continued his speech until midnight.” How do we know the phrase “break bread” in the verse is referring to the disciples coming to together to eat the Lord’s Supper (take communion) and not just a common meal to satisfy their hunger?First, we can establish from I Cor 10:16 (“The cup of blessing which we bless, is it not the communion of the blood of Christ: The bread which we break, is it not the communion of the body of Christ?”) that the breaking of bread at least sometimes refers to the communion.Second, we see that I Cor 11:21-22,34 ("if any man hunger, let him eat at home") condemns eating a common meal (to satisfy hunger) in the church assembly, and since Acts 20:7 is referring to disciples coming together congregationally, therefore Acts 20:7 cannot be referring to just a common meal. So it must be referring to the Lord’s Supper.Conclusion: Congregations today should eat the Lord’s Supper when they come together on the first day of the week, just like the first century congregations did.