6. If her birthday is September 23rd, send a message at 9:23.
“What a creative idea! I’m impressed,” chuckles one Japanese woman in her late teens. The technique is a bit advanced, but if you can manage to match the time stamp to her birthday, she’ll be awestruck by your originality. Because many women do not check the time stamp on their messages, don’t forget to subtly mention it in the message.