Conclusion

I want to explain the conclusion of the How To Attract Someone's Attention and Expression To Tell Interesting News. For How To Attract Someone's, we can use this expression:

• May/Can I...
• Attention please
• I say
• Look Here
• Just a Minute
• Hey!
• Look/Watch Out
• Mind! 

For the example, I explain May/Can I. May/Can I is used to attract the attention of a group of people who are talking among themselves to make an announcement, etc.  

And For Express to Interesting News, we can used this expression:

• In Formal Situations :

         - I announce that .....
         - This is our great pleasure that .....

• In Informal Situations

         - I have interesting news.
         - I have excelent news!
         - Marvellous, there ....

This is my conclusion. If I have a mistake in my conclusion,  I will say sorry. Maybe this post can tell you more than you know. Wassalamualaikum wr wb.