Well, instead of writing this . . . I will see that your sister gets the letter. Whenever possible, replace adverbs with actions or gestures. Yes, it adds to the word count, but your writing will be much more vivid and poignant. They tell us how the noun looks, sounds, smells, tastes, feels, and thinks.
Some writers love adjectives more than their own wives.
Used appropriately, an adjective can add flavor to a noun, giving us a vivid sensory impression of it. The adjective, red , modifies the noun that follows it. It tells us that this is not just a Mustang, but the red Mustang , and therefore we'd better take notice of it. Adjectives used as identifiers are good. However, problems arise when writers use adjectives for purely descriptive purposes.