Nonverbal communication in particular is important because social pressures can make it hard for some to speak up and verbally say no. “I’m autistic and people are always telling me that 95 percent of communication is nonverbal and tell me it’s important to make efforts to understand that,” says Lola Phoenix, a writer in London. “And then when it comes to consent it’s suddenly like, ‘Why didn’t they say something? No one is a mind reader!’ That’s really hypocritical.”