diff --git a/example/gist/on-friend.ts b/example/gist/on-friend.ts
index 349b4f9d0c4dd383722370adb1ed5df63f2ef7d5..9abe3abd365fdf2620c1dcdb1a3a3114ffb93c50 100644
--- a/example/gist/on-friend.ts
+++ b/example/gist/on-friend.ts
@@ -4,25 +4,30 @@ import {
   , Room
 } from '../../'
 
-export default async function onFriend(contact: Contact, request: FriendRequest): Promise<void> {
+export default async function onFriend(contact: Contact, request?: FriendRequest): Promise<void> {
   try {
+    if (!request) {
+      console.log('New friend ' + contact.name() + ' relationship confirmed!')
+      return
+    }
     /********************************************
      *
      * 从这里开始修改 vvvvvvvvvvvv
      *
      */
+    await request.accept()
 
-    if (request.hello !== '上课') {
-      return
-    }
-
-    request.accept()
-    request.contact.say('thanks for coming for ' + request.hello)
+    setTimeout(function() {
+      contact.say('thank you for adding me')
+    }, 3000)
 
-    const myRoom = await Room.find({
-      topic: 'ding'
-    })
-    myRoom.add(request.contact)
+    if (request.hello === 'ding') {
+      const myRoom = await Room.find({ topic: 'ding' })
+      setTimeout(function() {
+        myRoom.add(contact)
+        myRoom.say('welcome ' + contact.name())
+      }, 3000)
+    }
 
     /**
      *
diff --git a/example/gist/on-room-join.ts b/example/gist/on-room-join.ts
index 4f6792ba0c077dac88a200a7ccab39ee82c7b580..d883e7d04b3292afacec20785758a2f4b37aee26 100644
--- a/example/gist/on-room-join.ts
+++ b/example/gist/on-room-join.ts
@@ -1,17 +1,19 @@
 import {
     Contact
   , Room
+  , Sayable
 } from '../../'
 
 const arrify = require('arrify')
 
 export default async function onRoomJoin(
-    room: Room
+    this: Sayable
+  , room: Room
   , invitee: Contact|Contact[]
   , inviter: Contact
 ): Promise<void> {
   try {
-
+    const inviteeName = arrify(invitee).map(c => c.name()).join(', ')
     /********************************************
      *
      * 从这里开始修改 vvvvvvvvvvvv
@@ -19,11 +21,17 @@ export default async function onRoomJoin(
      */
 
     if (room.topic() !== 'ding') {
+      this.say('Room ' + room.topic()
+            + ' got new memeber ' + inviteeName
+            + ' invited by ' + inviter.name()
+      )
       return
     }
 
-    if (inviter.self()) {
-      room.say('Welcome to my room: ' + arrify(invitee).join(', '))
+    const inviterIsMyself = inviter.self()
+
+    if (inviterIsMyself) {
+      room.say('Welcome to my room: ' + inviteeName)
       return
     }
 
diff --git a/index.ts b/index.ts
index e675a4c9a5e02f3fb7fbd925e993439a90a4c1a5..07c17f1fc922daa2a9a0ee158fe89f29be4895eb 100644
--- a/index.ts
+++ b/index.ts
@@ -1,4 +1,7 @@
-import Config         from './src/config'
+import {
+    Config
+  , Sayable
+}                     from './src/config'
 import Contact        from './src/contact'
 import FriendRequest  from './src/friend-request'
 import IoClient       from './src/io-client'
@@ -23,6 +26,7 @@ export {
   , Puppet
   , PuppetWeb
   , Room
+  , Sayable
   , UtilLib
   , Wechaty
   , log // for convenionce use npmlog with environment variable LEVEL
diff --git a/src/friend-request.ts b/src/friend-request.ts
index 5a552957e888d1294102a8e000727ec14ae9c7a3..4ed33b29da3ff3d86815c26ed6a97e51b7534410 100644
--- a/src/friend-request.ts
+++ b/src/friend-request.ts
@@ -25,8 +25,8 @@ abstract class FriendRequest {
     }
   }
 
-  public abstract send(contact: Contact, hello: string): void
-  public abstract accept(): void
+  public abstract async send(contact: Contact, hello: string): Promise<void>
+  public abstract async accept(): Promise<void>
 
 }
 
diff --git a/src/puppet-web/friend-request.ts b/src/puppet-web/friend-request.ts
index 9b2aa6fac9e5babb85723ef327dc16abdc6740b4..5d503876fa032882160be3d35bb5183b49a85c38 100644
--- a/src/puppet-web/friend-request.ts
+++ b/src/puppet-web/friend-request.ts
@@ -76,7 +76,7 @@ class PuppetWebFriendRequest extends FriendRequest {
     this.type     = 'confirm'
   }
 
-  public send(contact: Contact, hello = 'Hi'): Promise<any> {
+  public async send(contact: Contact, hello = 'Hi'): Promise<void> {
     log.verbose('PuppetWebFriendRequest', 'send(%s)', contact)
 
     if (!contact) {
@@ -89,11 +89,12 @@ class PuppetWebFriendRequest extends FriendRequest {
       this.hello = hello
     }
 
-    return Config.puppetInstance()
-                  .friendRequestSend(contact, hello)
+    await Config.puppetInstance()
+                .friendRequestSend(contact, hello)
+    return
   }
 
-  public async accept(): Promise<any> {
+  public async accept(): Promise<void> {
     log.verbose('FriendRequest', 'accept() %s', this.contact)
 
     if (this.type !== 'receive') {
diff --git a/src/room.ts b/src/room.ts
index 84fd333301a5600f4d6a068c0855ccc38f0003b0..72fad4cb5d0e66e6a0d14a2ddbd11feafc453af1 100644
--- a/src/room.ts
+++ b/src/room.ts
@@ -220,26 +220,28 @@ export class Room extends EventEmitter implements Sayable {
     Object.keys(this.obj).forEach(k => console.error(`${k}: ${this.obj && this.obj[k]}`))
   }
 
-  public add(contact: Contact): Promise<any> {
+  public async add(contact: Contact): Promise<any> {
     log.verbose('Room', 'add(%s)', contact)
 
     if (!contact) {
       throw new Error('contact not found')
     }
 
-    return Config.puppetInstance()
-                  .roomAdd(this, contact)
+    await Config.puppetInstance()
+                .roomAdd(this, contact)
+    return
   }
 
-  public del(contact: Contact): Promise<number> {
+  public async del(contact: Contact): Promise<number> {
     log.verbose('Room', 'del(%s)', contact.name())
 
     if (!contact) {
       throw new Error('contact not found')
     }
-    return Config.puppetInstance()
+    const n = await Config.puppetInstance()
                   .roomDel(this, contact)
                   .then(_ => this.delLocal(contact))
+    return n
   }
 
   // @private
@@ -404,7 +406,7 @@ export class Room extends EventEmitter implements Sayable {
     if (!roomList || roomList.length < 1) {
       throw new Error('no room found')
     }
-    return roomList[0]
+    return roomList[0].ready()
   }
 
   public static load(id: string): Room | null {