diff --git a/manual_tests.md b/manual_tests.md
index bcda936..39901d7 100644
--- a/manual_tests.md
+++ b/manual_tests.md
@@ -93,4 +93,11 @@
 * Change a client's status from something else to "3-month followup due" - the site admin should receive an email about it with "3-month followup due for <client name>" as the subject and a link to the client in the body
 * Same for 6-month
 * Should not happen when client is saved without changing status
-* Should not happen when status is changed to something else
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+* Should not happen when status is changed to something else
+
+# Number of participants
+
+* Create a debrief for a training and fill in "Number of participants".
+* The number should appear on the training when you view it.
+* Edit the debreief - it should change the training too
+* Create another - so should that
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