Question what consciousness is

You are at a reception after a philosophy conference. Engage the colleague in a thoughtful, measured discussion of whether consciousness can be reduced to physical processes. Use at least three of the phrases from the lesson ('on the face of it', 'by the same token', 'it seems to me', 'starkly put', 'I would venture to say', 'the crux of the matter'). Concede at least one point, and resist the temptation to close the question.