Michigan gas station clerk saves teen from alleged kidnapper after she mouths 'help'

[usonian]

1. Signal for Help: The Silent Hand Gesture Every Woman Should Know

https://www.igniteher.org/post/signal-for-help-hand-gesture

And men, everyone.

The article says how to respond.

How to Respond If You See the Signal

If someone uses the Signal for Help, don’t panic—and don’t make a scene.

Here’s what experts recommend:

Don’t confront the person in public. That could escalate the situation.
Privately message or call them to ask yes-or-no questions like:

“Are you safe right now?”
“Do you want me to call the police?”
“Would you like me to stay on the phone with you?”

If you believe someone is in immediate danger, call 911.
Document details: location, time, people involved—this helps law enforcement.

Even more at the link.
An important read.