diff --git a/README.md b/README.md
index fbccfb2..412e1f3 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,13 @@ Catches mail and serves it through a dream.
 
 MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far.
 
+## How
+
+1. `gem install mailcatcher`
+2. `mailcatcher`
+3. Go to http://localhost:1080/
+4. Send mail through smtp://localhost:1025
+
 ## Features
 
 * Catches all mail and stores it for display.