Neat little widget for Devise greeting the user in a random language.

application_helper.rb

# coding: utf-8
# Make sure you declare the use of utf-8
# so you can use characters from other
# languages.

module ApplicationHelper
    def greeting
    # Add more here
    greetings = ['Hello', 'Greetings', 'Hi', 'Kon\'nichiwa', 'Bonjour',
                 'Cześć', 'Olá', 'Hallo', 'Hei', 'Hallå']

    # Select a random greeting
    greetings.sample
  end
end

gistfile1.erb

<%# In your layout somewhere... %>

<% if !user_signed_in? %>
  <%= link_to 'Sign in', new_user_session_path %> or <%= link_to 'Sign up', new_user_registration_path %>
<% else %>
  <%= greeting %> <% current_user.email %>
<% end %>