Thanking Nick in Ruby

gistfile1.rb

class ThankYou
  def initialize(name, custom_message = nil)
    @name = name
    custom_message.nil? ? @custom_message = "Thank you" : @custom_message = custom_message  
  end

  def greet
    puts "#{@custom_message}, #{@name}"
  end

end

newgreeting = ThankYou.new("Nick", "Thanks")
newgreeting.greet