string firstFriend = "Maria";
string secondFriend = "Sage";

Console.WriteLine($"My friends are {firstFriend} and {secondFriend}.");

Write vs WriteLine

Write does not append a newline character.

Escape codes

\t = tab
\n = newline

You can also "disable" escape codes by prefixing a string with @:

@"C:\Users\me\File.txt"

Console operations

Console.BackgroundColor = ConsoleColor.Yellow;
Console.ForegroundColor = ConsoleColor.Black;
Console.Clear();
Console.Title = "A Nice Window Title"