diff --git a/xwords4/android/XWords4/archive/R.java b/xwords4/android/XWords4/archive/R.java
index 2121d2a3b..53fc0d697 100644
--- a/xwords4/android/XWords4/archive/R.java
+++ b/xwords4/android/XWords4/archive/R.java
@@ -1773,6 +1773,7 @@ public final class R {
          */
         public static final int newgame_sms_header=0x7f050218;
         public static final int newgroup_label=0x7f05025e;
+        public static final int nfc_just_tap=0x7f0502d8;
         /**  Title of dialog for renaming game (triggered by selecting
          list_item_rename) 
  If you try to copy a networked game you get this error
diff --git a/xwords4/android/XWords4/res/values/strings.xml b/xwords4/android/XWords4/res/values/strings.xml
index abb65b297..f6a08b0e7 100644
--- a/xwords4/android/XWords4/res/values/strings.xml
+++ b/xwords4/android/XWords4/res/values/strings.xml
@@ -2293,4 +2293,7 @@
 
     <string name="invite_stays">(This dialog will stay up until all
     invited players have connected.)</string>
+
+    <string name="nfc_just_tap">To invite via NFC just touch the back
+    of this device against the one you want to invite.</string>
 </resources>
diff --git a/xwords4/android/XWords4/res_src/values-ba_CK/strings.xml b/xwords4/android/XWords4/res_src/values-ba_CK/strings.xml
index abb8935c1..e8c6b74f0 100644
--- a/xwords4/android/XWords4/res_src/values-ba_CK/strings.xml
+++ b/xwords4/android/XWords4/res_src/values-ba_CK/strings.xml
@@ -1948,4 +1948,6 @@
     </string>
   <string name="invite_stays">sIht( golaid lliw yats pu litnu lla
     detivni sreyalp evah detcennoc.)</string>
+  <string name="nfc_just_tap">Ot etivni aiv CFN tsuj hcuot eht kcab
+    fo siht ecived tsniaga eht eno uoy tnaw ot etivni.</string>
 </resources>
diff --git a/xwords4/android/XWords4/res_src/values-ca_PS/strings.xml b/xwords4/android/XWords4/res_src/values-ca_PS/strings.xml
index cd6493379..2da341f46 100644
--- a/xwords4/android/XWords4/res_src/values-ca_PS/strings.xml
+++ b/xwords4/android/XWords4/res_src/values-ca_PS/strings.xml
@@ -1948,4 +1948,6 @@
     </string>
   <string name="invite_stays">(THIS DIALOG WILL STAY UP UNTIL ALL
     INVITED PLAYERS HAVE CONNECTED.)</string>
+  <string name="nfc_just_tap">TO INVITE VIA NFC JUST TOUCH THE BACK
+    OF THIS DEVICE AGAINST THE ONE YOU WANT TO INVITE.</string>
 </resources>
diff --git a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardDelegate.java b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardDelegate.java
index 92e1f3e4c..7ae80ed0f 100644
--- a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardDelegate.java
+++ b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardDelegate.java
@@ -1011,6 +1011,8 @@ public class BoardDelegate extends DelegateBase
             case NFC:
                 if ( ! NFCUtils.nfcAvail( m_activity )[1] ) {
                     showDialog( DlgID.ENABLE_NFC );
+                } else {
+                    showOKOnlyDialog( R.string.nfc_just_tap );
                 }
                 break;
             case BLUETOOTH: