Know what your main objective is : You should be clear about your topic and what you want to convey. Assemble your thoughts in a appropriate order and then communicate accordingly. Organised communication and precision in thought get effectively received and appreciated. Purposeless talks can be confusing so you should always try to show that there is an aim or motive behind your talk.
Understand the background of your audience: You should be emotive and subtle towards the needs of your receiver. Understand their behaviour, nature and culture/religion, but you are simply showing respect to his religious beliefs or thoughts, it does not mean you cannot state your own point of view. Do not be aggressive if you do not agree with anyone or anything that is going against your philosophy. State your thoughts respectfully and mirror positivity in your conversation and nature.
Understand the position/standard of your audience: The message should also be structured as their level or ability. If you are conveying the message informally then avoid using technical words and if you are addressing business elite, the language should have professional complexity.
Only mention the topic that they want to hear: Messages should be framed in a simple and well-mannered tone which interests the listeners. Care should be engaged to keep the sentences short and humble. Technical words should only be used where they are required the most. The most significant of all the interest of the receiver should be highlighted so that it is conveyed and attract the users else you might find your audience or listening yawning while you are speaking.
Maintain a positive body language: When communicating, make sure you use appropriate body language, avoid displaying too much emotions as the receiver might misunderstand the message. Try to always keep a positive smile on your face whilst talking and make eye to eye contact with the listener but not so intensely otherwise you would you would put them in a uncomfortable position. Sit upright and feel relaxed