How to use present participles

In English, we cannot run away from using the present participle, that is 'ing'words. Present participle is used after a finite verb has been used in a sentence. The following are sentences in this group:

1 I sat under the tree, waiting for my friend. [The finite verb here is 'sat']
2 He stood there, staring at the stars in the sky. ['stood' is the finite verb in this sentence.]
3 She squatted outside the house, shivering in the cold weather. [The finite verb in the sentence is 'squatted']