Her face was quizzical as she considered writing about facial expressions.
Overwriting: writing too many words, wasting words, writing words, words and more words
Overwriting bores the reader, so don’t do it.
Adverbs: avoid them
Judicious use of adverbs is much more effective than scattering them liberally.
Stage directions: who’s doing what?
Characters do stuff and move about. If we don’t convey this to the reader, our characters might as well be statues. However, too much stage direction risks tedium. We need to get the balance right.