Professional speaker Nate Dunlop recommends you put your metaphors together by:
- Making the metaphor consistent - for example, if you start talking about chess, keep all the metaphors related to chess playing
- Relating all parts of the metaphor to each other - for example, if you are talking about chess, the chess board, and the chess pieces, make a metaphor that involves each part such as "Life is like the game of chess: the chess board is your daily life and the chess pieces are the people you meet every day."
Professional Speech Coach
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