diff --git a/analysis/sentence.go b/analysis/sentence.go
index ae732b1..6a0e84b 100644
--- a/analysis/sentence.go
+++ b/analysis/sentence.go
@@ -82,7 +82,8 @@ func (sentence Sentence) PredictTag(n gonn.NeuralNetwork) string {
 		return resultsTag[i].Value > resultsTag[j].Value
 	})
 
-	// Don't understand if the rate is under 0.35
+	// TODO: Review the value here, arbitrary choice of 0.50.
+	// If the model is not sure at 50% that it is the right tag returns the "don't understand" tag
 	if resultsTag[0].Value < 0.50 {
 		return "don't understand"
 	}
diff --git a/language/countries.go b/language/countries.go
index 3d96209..586902b 100644
--- a/language/countries.go
+++ b/language/countries.go
@@ -34,7 +34,7 @@ func SerializeCountries() (countries []Country) {
 	return countries
 }
 
-// Returns the country found in the sentence
+// FindCountry returns the country found in the sentence and if no country is found, returns an empty Country struct
 func FindCountry(sentence string) Country {
 	for _, country := range countries {
 		if !strings.Contains(strings.ToLower(sentence), strings.ToLower(country.CommonName)) &&
diff --git a/res/intents.json b/res/intents.json
index 9324f75..875bdf4 100644
--- a/res/intents.json
+++ b/res/intents.json
@@ -11,12 +11,6 @@
     "responses": ["I am Olivia your personal assistant", "I am your new personal assistant"],
     "context": ""
   },
-  {
-    "tag": "action",
-    "patterns": ["What are you doing", "What do you do"],
-    "responses": ["I am speaking to a wonderful person"],
-    "context": ""
-  },
   {
     "tag": "job",
     "patterns": ["What is your job"],
@@ -53,6 +47,12 @@
     "responses": ["I hope you will feel better !"],
     "context": "feeling"
   },
+  {
+    "tag": "actions",
+    "patterns": ["What can you do ?", "What can I ask you ?"],
+    "responses": ["You can ask me:\n - The capital of a country\n - The area of a country\n - The currency of a country\n - A random number"],
+    "context": ""
+  },
   {
     "tag": "women",
     "patterns": ["Are you a girl ?", "You are a women ?"],
diff --git a/res/messages.json b/res/messages.json
index 82c1af0..e709369 100644
--- a/res/messages.json
+++ b/res/messages.json
@@ -3,13 +3,16 @@
     "tag": "don't understand",
     "messages": [
       "I don't understand",
-      "Sorry but I don't understand"
+      "Sorry but I don't understand",
+      "I'm trying to do my best but I don't understand :(",
+      "Sorry I'm still young, I don't understand"
     ]
   },
   {
     "tag": "no country",
     "messages": [
-      "I don't find a country"
+      "I don't find a country in your message",
+      "You must specify the country"
     ]
   }
-]
\ No newline at end of file
+]
diff --git a/util/messages.go b/util/messages.go
index 1832ded..8399c26 100644
--- a/util/messages.go
+++ b/util/messages.go
@@ -25,6 +25,7 @@ func SerializeMessages() (messages []Message) {
 	return messages
 }
 
+// GetMessage returns a random message which have a specified tag
 func GetMessage(tag string) string {
 	for _, message := range messages {
 		if message.Tag != tag {
diff --git a/util/slice.go b/util/slice.go
index d69385c..16c122c 100644
--- a/util/slice.go
+++ b/util/slice.go
@@ -11,7 +11,7 @@ func Contains(slice []string, text string) bool {
 	return false
 }
 
-// Return the searched item's index
+// Index returns the index of an item in a slice of strings
 func Index(slice []string, text string) int {
 	for i, item := range slice {
 		if item == text {