That small conversation has 18 renders. I won't re-render the whole conversation, only the three renders affected by the thumb through the ear.
About the device, would a responsible policewoman use a phone while driving? She uses a hands-free one. When she picks up, the conversation is:
mc "Good morn..."
oma "I'm with my grandfather..."
mc "Ah, Ok. That's right, he was leaving for San Diego today."
mcp "{i}(That's a clear hint that she doesn't want me to say anything about us.){/i}"
Making it clear that the grandfather can hear the conversation.
The main reason to design My Residence was for that scene. Sweet Debbie needed a small kink shared with the MC. Clichecita's My Residence is that point in common.
She is touching her hair. A lot of women do it unconsciously when talking to their loved ones. Also, she's driving in the heat of summer, so she's either with the A/C on or the window down. Some hairs are bound to escape the ponytail.
You can see in this picture, from the same scene, that she isn't talking with a hand-held device.
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