He's holding the phone to his left EAR.
Ears do not cross hemispheres.
The Big Bang Theory Season 2, Episode 15
Did the Lord of Light
whisper that in your EAR?
Game of Thrones Season 7, Episode 1
What's up with your EAR?
Breaking Bad Season 4, Episode 4
What's that thing in your EAR?
What did I say? Get out of here!
Breaking Bad Season 2, Episode 11
Some believe she whispers orders in your EAR
and you obey.
Game of Thrones Season 2, Episode 5