diff --git a/smiles.go b/smiles.go
new file mode 100644
index 0000000..7ca6743
--- /dev/null
+++ b/smiles.go
@@ -0,0 +1,7 @@
+package calculator
+
+type Smiles struct{}
+
+func (Smiles) Smile() string {
+	return ":)"
+}