There is a mass migration from Islamic lands to Kafir lands. It is the mission of Islam to bring the Sharia into power, everywhere. There is an ethical divide between Islam and the hated Kafir civilization. It is the purpose of Sharia to dominate the Kafir civilization.

As Muslims immigrate, they immediately make Sharia demands. These demands are endless in details, but the process can take generations. We can see the centuries long transformation in the Middle East and Turkey which used to be Christian.

This does not mean that every Muslim takes part in the politics of Sharia, since only a few Islamic leaders are needed. The reason that Islam can win every attempt to advance Sharia is that Kafirs are tolerant of all demands and do not push back. So if our attitudes do not change, Kafir nations will become Sharia nations.

When people go to an event where they might be able to ask questions of a Muslim, what is the best way to ask?

I recommend a specific technique. Do not ask about the Koran. Do not ask about Islam, instead ask about Mohammed. State some idea from the Sunna (what Mohammed did or said) and then ask the Muslim a question about obeying that Sunna. Your goal is to educate the audience.

Here is an example: The Sunna of Mohammed includes wife beating, as does the Sharia. Do you agree that wife-beating is a good practice?
You will never get a straight answer, but the audience learns about Mohammed and Islamic doctrine from your question.