diff --git a/main.lua b/main.lua
index 63a2576..a2d1ee4 100644
--- a/main.lua
+++ b/main.lua
@@ -36,6 +36,13 @@ print("Int add:", i + Types.Int(5))
 print("Float mul:", f * Types.Float(2.0))
 print("Str concat:", s .. Types.Str("!"))
 print("Bool eq:", b == Types.Bool(true))
+print("Int call:", i())
+print("Float call:", f())
+print("Str call:", s())
+print("Bool call:", b())
+print("Tuple call:", t())
+print("Int copy:", i.copy())
+print("Tuple copy:", t.copy())
 
 attempt("Int mutate", function()
     i.value = 99