The Tell Command

Not to be confused with The Tellraw Command.

The /tell command is a command mostly used to send messages.

Overview
The /tell command sends a message similar to (Username) whispers to you: (Message) in gray and italics. For example, if I was named The_John_Cena, and I did '''/tell RandomGuy Hey! Let's go sneak up on him! '''it would show (in grey text)

''The_John_Cena whispers to you: Hey! Let's go sneak up on him!''

Syntax
/tell

Explanation
Honestly, just see the Say command, except add a player on the front. The player value is the player(s) it is sent to. (See Introduction to Selectors.)

Trivia

 * The quickest way to send messages.
 * Can also be /msg.