Which word does Wordsworth use to create an upbeat tone? bay crowd twinkle stretched

Wordsworth used twinkle word to create an upbeat tone. Based on the choice, the question is about The Daffodils poem written by William Wordsworth because those 4 words were written on the poem. The "twinkle word created an upbeat tone because it described the subject's feeling when he/she found the Daffodils crowd.