How to put a song from itunes pc onto my iPhone?

How do i put a song from my itunes

1: Connect your iPhone to your computer.
2: Open iTunes.
3: On the left, the section with your iPhone should appear.
4: Select your song and drag it to 'iPhone… '
5: The song should be on your iPhone.

Or, if you want to sync a playlist:

1: You go to your iPhone menu in iTunes.
2: Go to 'Music'
3: Select: 'Sync selected tracks' or something like that.
4: There's a list from which you can select the playlist, artist, albums…
5: Select the playlist, artist, album or whatever else you might find and want on iPhone.
6: Look at the coloured beam, on the right side, you got 'Synchronize'.
7: The songs, playlist or whatever should be on your phone.