How to get attention from people while communicating

Talking when nobody is listening is like clapping with one hand. Attention and response are the 2 tiers of communication.
Some techniques for getting people attention

• Pay attention to people and they will pay attention to you as well. Connect with audience, their needs, their dreams. Talk what is interesting to audience. Get audience to do something, involve audience. If any time you feel like loosing attention, do something to get it back. Don't speak and make others hear, but have a dialogue with them, let them speak.
• Overcoming the competition of communication.
• Become interesting in them to win their competition

Guidelines for following above techniques:

• Organize your thoughts before speaking. If thought is not clear in our mind, it is worst when spoken.
• Give them info, to the point. Audience should not think - "So what is his point?"
• Show them, what is there for me? 
• Ask questions - like their jobs, hobbies. 
• Be Real on your part.  
• Be enthusiastic, use gestures. This will make your listeners enthusiastic.