Text updates.

lang/main.json

       "nwjsGrantPermissions": "Please grant permissions to use your camera and microphone"
     },
     "keyboardShortcuts": {
-        "keyboardShortcuts": "Keyboard shortcuts:",
-        "raiseHand": "Raise your hand.",
-        "pushToTalk": "Push to talk.",
-        "toggleScreensharing": "Switch between camera and screensharing.",
-        "toggleFilmstrip": "Show or hide the videos.",
-        "toggleShortcuts": "Show or hide this help menu.",
-        "focusLocal": "Focus on the local video.",
-        "focusRemote": "Focus on one of the remote videos.",
-        "toggleChat": "Open or close the chat panel.",
-        "mute": "Mute or unmute the microphone.",
-        "fullScreen": "Enter or exit full screen mode.",
-        "videoMute": "Stop or start the local video."
+        "keyboardShortcuts": "Keyboard shortcuts",
+        "raiseHand": "Raise or lower your hand",
+        "pushToTalk": "Push to talk",
+        "toggleScreensharing": "Switch between camera and screen sharing",
+        "toggleFilmstrip": "Show or hide the videos",
+        "toggleShortcuts": "Show or hide this help menu",
+        "focusLocal": "Focus on your video",
+        "focusRemote": "Focus on another caller's video",
+        "toggleChat": "Open or close the chat",
+        "mute": "Mute or unmute your microphone",
+        "fullScreen": "Enter or exit full screen",
+        "videoMute": "Start or stop your camera"
     },
     "welcomepage":{
         "go": "GO",
     },
     "toolbar": {
         "mute": "Mute / Unmute",
-        "videomute": "Start / stop camera",
+        "videomute": "Start / Stop camera",
         "authenticate": "Authenticate",
-        "lock": "Lock / unlock room",
-        "invite": "Invite others",
-        "chat": "Open / close chat",
-        "etherpad": "Shared document",
+        "lock": "Lock / Unlock room",
+        "invite": "Share the link",
+        "chat": "Open / Close chat",
+        "etherpad": "Open / Close shared document",
         "sharedvideo": "Share a YouTube video",
-        "sharescreen": "Share screen",
-        "fullscreen": "Enter / Exit Full Screen",
+        "sharescreen": "Start / Stop screen sharing",
+        "fullscreen": "View / Exit full screen",
         "sip": "Call SIP number",
         "Settings": "Settings",
-        "hangup": "Hang Up",
+        "hangup": "Leave",
         "login": "Login",
         "logout": "Logout",
-        "dialpad": "Show dialpad",
+        "dialpad": "Open / Close dialpad",
         "sharedVideoMutedPopup": "Your shared video has been muted so<br/>that you can talk to the other participants.",
         "micMutedPopup": "Your microphone has been muted so that you<br/>would fully enjoy your shared video.",
         "talkWhileMutedPopup": "Trying to speak? You are muted.",
         "unableToUnmutePopup": "You cannot un-mute while the shared video is on.",
         "cameraDisabled": "Camera is not available",
         "micDisabled": "Microphone is not available",
-        "filmstrip": "Show / hide videos",
+        "filmstrip": "Show / Hide videos",
         "profile": "Edit your profile",
-        "raiseHand": "Raise hand to speak"
+        "raiseHand": "Raise / Lower your hand"
     },
     "bottomtoolbar": {
         "chat": "Open / close chat",
         "on": "Recording",
         "off": "Recording stopped",
         "failedToStart": "Recording failed to start",
-        "buttonTooltip": "Start / stop recording",
+        "buttonTooltip": "Start / Stop recording",
         "error": "Recording failed. Please try again.",
         "unavailable": "The recording service is currently unavailable. Please try again later."
     },
         "off": "Live Streaming Stopped",
         "unavailable": "The live streaming service is currently unavailable. Please try again later.",
         "failedToStart": "Live streaming failed to start",
-        "buttonTooltip": "Start / stop live stream",
+        "buttonTooltip": "Start / Stop live stream",
         "streamIdRequired": "Please fill in the stream id in order to launch the live streaming.",
         "error": "Live streaming failed. Please try again.",
         "busy": "All recorders are currently busy. Please try again later."