Aozawa had come to understand the Superpower of Global Travel quite well.
First and foremost, Global Travel could be used on others, provided that his palm made contact with the person's body. Merely brushing arms was useless; he had to grasp the other person with his palm to activate the Superpower of Global Travel.
In addition, there were no limitations or cooldown periods for jumping between countries. After arriving in London, he could then transfer to Paris, Moscow, and then to some nameless small countries in Africa. He could understand the language of every country and use his Ability to speak the same language.