How to get songs from my mac that i've moved to itunes over to my iPhone?

So I've already moved them over to itunes, that went fine and all BUT I CAN't GET THEM OVER TO MY IPHONE LIKE WHERE SHOULD I DRAG THEM TO OR SOMETHING

Sign in to the account and go to the cloud

Take your charging cord, put it into your computers USB port, plug your phone in, open itunes, and it should automatically sync everything.

When your computer is up and running, plug your iPhone into the USB charger and plug that into the computer so your phone starts to charge. Usually this will automatically boot up iTunes, if not just open it. When iTunes opens up on the left hand side you should see your Device with its Device Name ( if you have a more updated version of iTunes you have to click File and look for a Devices tab). Click on that device. A screen should pop up saying basic information about your iPhone. Look at about 3/4 up the screen and you should see little tabs saying things like Music, Apps, Etc. Click on the one saying Music and a screen should pop up talking about whether you want to select all music, cetrain playlists, albums, etc. Click what you want and then you can press sync on the bottom right of the screen and once it sync it should show up on your iPhone.