One of the coolest things of Siri can do is read your texts read out loud to you. Say you've got a bunch of unread text messages on your iPhone 4S and you don't want to tap through each one. After all, you might be concentrating on something you're looking at — er, like the road in front of your vehicle.
Siri can read your text messages to you in a human-like voice, and you can even respond to them using your voice, too. Now that's hands-free.
Here's how to have Siri read your text messages out loud:
- Press and hold the Home button. - After the short chime, you can give Siri a command. 
- Say something like, "Read me my texts."  - You can make the same request a number of different ways. "Do I have any messages?" works just great. - Siri announces how many messages you have waiting for you. Siri then starts reading all new messages to you, beginning with the sender's name — or if the name is unknown, the phone number it's coming from. You won't see the message on the screen. 
- When prompted by Siri to say what you want to do with the message, say either "Reply" or "Read them again."  - Siri performs the action requested. 
Keep in mind that Siri will read only those text messages that you haven't picked up yet. If you've got a bunch of messages stored on your phone but you've already read and/or replied to them, Siri will tell you there isn't anything to read to you.
You have a number of options when it comes to responding to a text message. The following are a few commands that Siri can handle:
- "Reply that's a great idea, thanks." 
- "Reply saying that's a great idea, thanks." 
- "Tell her I'll be there in 15 minutes." 
- "Call him." 
- "E-mail her." 
- "Read it again." 



