Good question! "Playing" is so promising! ^_^
This fully shows that you care about the unknown, and that you are full at this time. A person who has eaten enough and still cares about the unknown has the potential for scientific research and creation. From this point of view, you are much better than the "professors" of many domestic scientific research institutions. They are obsessed with the "career" of "wining and eating" in the name of "scientific research".
Although your question is so complicated, I still have to answer it patiently.
In general, you can write letters to aliens, make phone calls, send telegrams, send electromagnetic wave signals, send emails, QQ, MSN... In short, how do you "connect" with your relatives and friends? "line", how to "connect" with aliens.
This leads to another sub-question of this problem, namely: How to obtain the address, phone number, email, QQ... of an alien?
The laziest way: call 114. Their advertisements say "know it all" every day.
Another way is to seek advice from those who have had experience of "connecting" with aliens. There may have been such people in the past, there should be now, and there will definitely be more in the future. Therefore, you can go to the library and check out those ancient books and modern books, but I guarantee that those who have successfully "connected" to aliens will usually be beaten to death without leaking their "connections." The contact information of the object.
In addition, you can ask "people in the future" for advice, but for them, today's world is just their vague memory, and they are not willing to come back, or they are showing and hinting to you every day , but you still don’t understand it now.
I fully understand your desire to "connect" with aliens. As an earthling who has had formal contact with aliens, at that time I wanted to find an alien beauty to marry. I almost went crazy thinking about it!
Just when my brain, heart, and even my whole body could not bear the "urgency" of this idea, an "alien messenger" came, saying that he came from the distant "Planet A" (Note: Alien messengers and Planet A are the concepts I gave them, that’s what they are anyway).
I didn’t see the flying saucer or the plane. I don’t know how he/she/it came. Anyway, I was once again sitting on the stone bench in the park and missing my alien. When I fell in love with my lover and almost went into shock, that messenger immediately appeared in front of me. I don't even know now whether the alien messenger who visited me for the first time is considered a resident of Planet A. This is just like one day you learned that an alien wants to make friends with you, and you sent one of your pets, or even a camel or kangaroo, to pick him up. How does he know who the "receptionist" you sent is? What if you’re not an “Earthling”?
Although I didn't feel scared at the time, I was really surprised for a while, because I had never seen anything like this before, and I guess you must have never seen it either. I will give you detailed experience next time...
I hope my experience can be of some help to you. I have an alien child, and I have been waiting for him to come back to see me and go to eat.