First understand how clients interact with brands. This allows u to help ur clients well connect with clients across a number of different disciplines and channels.
Put away everything you know about design, and write down your raw first impressions of ur view of the ad .
What is the first visual aspect that you noticed in each part? What was your first touching response? Write down the first ten words that popped into your mind. Look at each part out of the corner of your eye, with other pieces, and from a distance. How striking is it?
How easy is it to shape out the message of the each part? Is the point right away clear, or does it take a few flash to click? Why? So, think about how each part in the design contributes to the generally message to the audience