first of all, note the 7 principles of UU:
The inherent worth and dignity of every person;
Justice, equity and compassion in human relations;
Acceptance of one another and encouragement to spiritual growth in our congregations;
A free and responsible search for truth and meaning;
The right of conscience and the use of the democratic process within our congregations and in society at large;
The goal of world community with peace, liberty, and justice for all;
Respect for the interdependent web of all existence of which we are a part.
some UUers believe that it is all summed up in the 7th, final principle. UU is based on "humanism" and its members included Walden's Thoreou and Ralph Waldo Emerson.
They believe in love and kindness, and to actively express such in their works in their community. They respect anyone's belief, though there may be arguement about a belief conforming to love, kindness, and the seven principles. You may enter an athiest, a christian or jew or moslem, a hundu or buddhist, a shaman or witch... the response will be "that's interesting, how does that work for you, how does that work for all creaturekind and the planet? UU will not try to bend you to any of the listed belief systems or their denominations, for me the definition of a noncult. Some churches have a minister, some choose, and are free to choose, to be laylead allowing members of the congregation to take turns giving a sunday presentation.
Some "religions" will host a costly revival in a stadium to celebrate God's love... UU would sponsor a refuge from Burma to express their love... or, in line with the principle of respect, support issues such as gays right to marriage.