Before the open contact begin, you should watch (or read ,the book was published years ago)

People who are ready for the contact will meet earlier with an alien. To make it happen faster, you should study and have knowledge about them. I recommend you to watch these. Or read an original book, Omi of the stars

(You can change the subtitles/cc Japanese to English)

I like this channel. His speech is always excellent. He would be one of the most famous and popular Japanese YouTubers.