Which sales pitch is more formal?
Like our furniture? Make it yours with colors and fabrics that will blow you away! Our furniture is highly customizable, with more than one hundred colors and fabrics to choose from.
Informal writing is typically used in casual situations or when communicating with someone you know well. Informal language often expresses familiarity and tends to sound more like speech. It uses more conversational language, such as slang, idioms, abbreviations, imprecise language, and contractions.
Formal writing is typically used in academic and business writing or when writing directly to an authority figure. It tends to be more courteous and impersonal, avoiding overly familiar or conversational language.
Compare the following sentences.
Informal: Yeah, ostriches can't fly, but I think they're awesome.
More formal: Ostriches may be flightless, but they're remarkable runners.
Most formal: Though flightless, ostriches are remarkable runners.
The second sales pitch is more formal. It uses more impersonal language. The other sales pitch uses idioms (blow you away!), and the direct address to the reader makes it sound more conversational.