diff --git a/704.md b/704.md
index c7ba9ca..5fca835 100644
--- a/704.md
+++ b/704.md
@@ -49,12 +49,14 @@ We notate the above derived `direct message public key` with  `dmpk`. Then we ca
 
 | Action Name           | Value  | Path                | Derive keys for                   |
 |-----------------------|--------|---------------------|-----------------------------------|
-| **receive**           | `0`    | `dmpk/0/<index>`    | receiving `direct messages`       |
-| **send**              | `1`    | `dmpk/1/<index>`    | sending `direct messages`         |
+| **send**              | `0`    | `dmpk/0/<index>`    | sending `direct messages`         |
+| **receive**           | `1`    | `dmpk/1/<index>`    | receiving `direct messages`       |
 | `draft`: republish    | `2`    | `dmpk/2/<index>`    | sending `republish events`        |
-| `draft` :market-order | `4500` | `dmpk/4500/<index>` | sending NIP45 `market orders`     |
+| `draft`: market-order | `4500` | `dmpk/4500/<index>` | sending NIP45 `market orders`     |
 
- send, receive, marketplace
+The client (creator of the `dmpk`) must:
+ - use a new send key (`dmpk/0/<index>`) for each event it signs. It starts from `0` and increments after an event is signed.
+ - create filters for the public keys it expects to receive messages to (`dmpk/1/<index>`). It is recommended to listen for the next `10` keys.
 
 ## Exchange the `direct message parent key`
 If `Alice` wants to signal `Bob` that she is ready to use this NIP (for more privacy) she must: