To get started and to be effective with Siri's important to know what to say and what she understands. Below are some current issues phrases (in bold) and what you can expect to get answers. You can also see that she understands the symbols if you do these correctly in English.
Using the Siri is in many cases very useful, for example. when sitting in a car or have both hands busy with something. Did you first get started with Siri is no turning back.
Take out your iPhone 4s and practice the phrases below!
[Punctuation/symbols/emoticons]. Siri can understand many basic symbols, emoticons and punctuation marks, as long as you say them by the right name. Examples include “open parenthesis”, “close square bracket”, ” “frowney face”, “new paragraph”, “pound sign”, etc.
Play playlist [playlist name]. Siri will play not just a song, but a whole playlist for you.
Find all email by [contact]. Siri will give you a short list of emails from the contact you ask for.
What’s on my calendar for [date]. Siri will show you all your appointments for today, tomorrow, next Monday, or February 28 (2012) if you ask nicely.
Search [Bing/Yahoo]. If Google’s not your cup of tea, Siri will search the competition for you.
Search [Google/Bing/Yahoo] for [specialized information] [time] [place]. Whether you want the latest scores, show times, etc., if you phrase it just right, Siri can often find it for you.
Who was in the cast of [movie]: Siri can tell you the name of that actor you know you’ve seen before but just can’t remember.
Delete all alarms: Siri will delete all alarms, not just individual ones, in case you never want to be woken up again!
Message [Social network] [Status]. If you’ve set it up on Twitter, Facebook, or another social network that lets you update via SMS, Siri will message your status right to it.
Restart. Siri will re-spring the Springboard. It’s not a full reboot, but it’s faster.