He thoughtfully looked at his teacher.
The student thoughtfully answered the question. I thoughtfully chose a present for my sister. The man sat in the library, thoughtfully reading a book.
Yes, "thoughtfully" is an adverb because it describes how an action is done. It often answers the question "how" in relation to a verb.
she thoughtfully asked if her friend wanted some help
She considered his question thoughtfully before responding.
I thoughtfully picked the girl's books up from the ground in the hallway, because she couldn't reach them from her wheelchair.
She spoke thoughtfully, weighing each word before sharing her opinion.
Thoughtfully is an adverb.
That is the correct spelling of "thoughtfully" (considerately).
You would have to use one of the adverb forms "thoughtfully" or "thoughtlessly."
Yes, "thoughtfully" is an adverb, not an adjective. Adverbs modify verbs, adjectives, and other adverbs, while adjectives modify nouns.
The preposition in the sentence is "at" (stared at).
fashion showly and thoughtfully