I don't know why but I kinda do believe that aliens visit us from time to time. Maybe patching into our airwaves, transmissions and whatnot just to study us prior to first contact.

I'm kinda afraid of the concept that we are all alone the universe, just that one rogue cosmic occurence/accident; and BAM! "Dead Space" no Extraterrestrial or Human Life, just the cold silence of space and empty planets. That is some scary Outer Limits/Twilight zone stuff.

So Classified, going back to the original story your friend told you that inspiried your post,
I'm not sure it makes all that sense when you look at it from the other side.
Imagine in the future we develop the ability to travel either intwrimensionally or through soace and find a less advanced race.
So astronaut steve proposes a mission: spend more energy then has thus far been spent by himan civilization to Travel several hours outside a population center, diguise our selves to look like one of the natives, diguise our vehicle to look like a natives, invite a random person to come out side the population center, send in a team to wipe the memeory of all other witnesses, reveal ourseleves to the chosen native, tell him nothing specific or useful, put the disguises back on and drive him back to the population center and make sure he has no evidence to show we were even there.
Im guessing the odds of that mission gettingba green light are zero. There is just no logical reason to do any of it. They didnt ask him anything right?

this is a tough question.. Aliens can mean anything from a Single cell organism to a Humanoid creature and everything in between..

Do I believe there is life on other Planets? Yes there are planets in the Habitable Zone (Where Earth is from the Sun) that life can be on but I believe it is Alien Bacteria.

Do I believe there is Intelligent Life on other Planets? No, but if there is it's unlikely they would be any further along culturally then we are. Why? if they are in our Galaxy the Planets would be roughly the same age as Earth and would have to be the same distance from the Dark center of our Galaxy as the Earth.

I believe its nieve to think we are the only species alive in the galaxy much less the universe.

i believe in aliens.

Yes, I think so.