After making all of the supplications that you want, you should end the prayer with tasleem, which means to say the salutation: as-salāmu 'alaykum wa raḥmatullah to the right and left hand sides.
This should be done by turning the face towards the right shoulder so much so that the people behind would be able to see your cheek. As the face is turned to the right, you should say the word: as-salāmu 'alaykum wa raḥmatullah. You should then turn your cheek to the left shoulder and repeat the phrase.
The evidence for doing this can be found in the following narration of Sa'd ibn Abī Waqqāṣ (may Allah be pleased with him):
"I saw the Messenger of Allah (may the peace and blessings of Allah be upon him) pronouncing tasleem on his right and on his left, until I saw the whiteness of his cheek." [Muslim: 582]
And Jābir ibn Samurah (may Allah be pleased with him) reported:
"We said our prayer with the Messenger of Allah (may the peace and blessings of Allah be upon him) and, while pronouncing tasleem, we made gestures with our hands [saying]: "Peace be upon you, peace be upon you." The Messenger of Allah (may the peace and blessings of Allah be upon him) looked towards us and said: Why is it that you make gestures with your hands like the tails of headstrong horses? When any one of you pronounces salutation (in prayer) he should only turn his face towards his companion and should not make a gesture with his hand." [Muslim: 431]