Done

lib/dog.rb

@@ -0,0 +1,14 @@
+class Dog 
+  def bark
+      puts "Woof!"
+  end
+  def sit 
+    puts "The Dog is sitting"
+  end
+end
+
+fido = Dog.new
+fido.bark
+fido.sit
+
+

lib/person.rb

@@ -0,0 +1,12 @@
+class Person
+  def talk()
+    puts "Hello World!"
+  end
+  def walk()
+    puts "The Person is walking"
+  end
+end
+
+ada = Person.new
+ada.talk
+ada.walk