What are some beginning participial phrases in this book?

A
participial phrase looks a lot like a verb, often using a word ending in
-ing or -ed, but it functions as an adjective and
modifies a noun in the sentence.

Here are a few found at the beginnings of
sentences in :

Whistling, he let the escalator waft him into the still
night air. (Chapter 1)

Whistling is
an adjective that describes the subject, he.

Seated there in the midst of July, without a sound, he
felt the tears move down his cheeks. (Chapter 2)

In this
sentence, the participial phrase modifies the subject, he.

Approaching from the rear, Montag
entered the men's washroom. (Chapter 3)

This participial
phrase modifies the subject, Montag.

This isn't a
natural spoken form of speech, so you have to sift out the dialogue as you
try to find examples and look instead at the language between conversations. After locating the
-ed or -ing ending, look for a comma separating the
phrase from the main clause, and be sure it functions to give more information about a noun or
pronoun.