how to insert textfields on node view

Hi ,

How to insert the form and fields in the node view,

For example,

i have page content type,

i put the article called "How to handle laptop" , and i published that content ,

now i go in the home, i find that articles displayed in the home,

Then i hit the article , then showed the article title and and article body ,

Now i want to insert the form and field in the node view,

This form purpose is forward to his/her friends,

i need the textfield and send mail button,

"So how to insert the form fields in the content / noew view"

Thanks
Bharanikumar