contextual_user_view.rb

class UserView < SimpleDelegator
  def initialize(delegate, salutation: 'Padawan')
    super(delegate)
    @salutation = salutation
  end

  def fullname
    "#{salutation} #{first_name} #{last_name}"
  end

  private
  attr_reader :salutation
end

user_view = UserView.new(user, salutation: "Jedi Master")
user_view.full_name  #=> "Jedi Master Luke Skywalker"
# Horay for keyword arguments!
user_view = UserView.new(user)
user_view.full_name  #=> "Padawan Luke Skywalker"