As you notice, there is no punctuation in the poem. The only form of any punctuation is when the rhymes are starting.There are lots of imagery within the poem as well. The first two lines for example, she is describing how they played and how they walked through the town as its snowing. The last two lines show imagery by showing what the speaker felt and how the speaker felt.
The speaker of the poem is watching as the people who live in the town play in the snow, as she watches them she tries to take note on whoever is playing in the snow. By the end of the poem, she cant stand it anymore and decides to join in because she is filled with excitement and wanting to dance with them.