The movement got it's start after the successful Brexit campaign in the UK, when many immigrants and refugees faced an uptick in racist attacks.

Allison, the American woman living in London who started it, told BuzzFeed News how the idea came to be.

“I thought about something that would cost nothing and had no political affiliation. Something that says, ‘I am a safe space, you can sit next to me, you can talk to me, you can ask me for a help,'” she said.