What does the free exercise clause mean

The clause in the First Amendment to the U.S. Constitution prohibiting Congress from making any law prohibiting the free exercise of religion — see also freedom of religion — compare establishment clause.  The free-exercise clause of the First Amendment states that the government “shall make no law … prohibiting the free exercise of religion.” Although the text sounds absolute, “no law” does not always mean “no law.” The Supreme Court has had to place some limits on the freedom to practice religion.

freedom of speech, how you practice life and religion, your thoughts and opinions on anything that comes to mind , so long as it doesn't interfere with another's life ,religion or their way of practicing life and religion

answer; overt behavior;

answer; an active listener;