Answer: Spanish has both a formal and an informal style of speech (tú / Ud.). This distinction applies to commands.
Compre Ud. el anillo.
Buy the ring. (formal)
Compra (tú) los dulces.
Buy the candy. (familiar)
Informal, or familiar, speech is used among friends, coworkers, relatives, or when addressing a child. Formal speech is generally used to be polite or to express respect. For that reason, the formal commands are often referred to as polite commands.
Explanation:
