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Pick three flowers with long stems. Hold the flowers together just below their heads. Separate the stems.
Try to pick them so that the stems are all approximately the same length. You need flowers with sturdy, pliable stems, like dandelions or clover. Lightly pinch them together with one hand to hold them in place. Use the other hand to gently separate the three stems, so you have a right stem, a middle stem, and a left stem.