how can think smartly and speak clearly? i forget the words in my speech, and my toung gets twisted in speaki

Answer 1

It always happens with the beginners.
So do not get disheartened.As advised above by one friend, talk regularly before a mirror.

Take help of your sister or brother and speak before them.
You should develop some confidence.

Take 3 deep breaths before starting. And throw a smile at the people you are going to address.
Start your speech with a bang, i.e. with a famous quote or with couplets of famous poem.
Always use proper gestures during a speech and never show your back to the audience.
Always maintain an eye contact with the audience.
Have a pause wherever possible and smile.

Do not show your intelligence, rather address the audience according to their level of intelligence.
You can also interact with the audience.

Never keep your hands behind your body, instead use them properly.

Last one but not the least, end your speech with a bang.

Answer 2

For 10 minutes a day every day, talk to yourself in a mirror.