I had imaginary friends as a bored homeschooled kid. I've been rid of them for a while. I don't really need them anymore as I do most of my socialization on the Internet and feel fine talking to myself.
I don't believe there is an imaginary person beside, but I pretend there is. I think that makes sense.
I speak to them internally, but look at them externally, unless I am truly alone ... in which case I talk aloud to them. Really, I'm just talking to myself. I don't make them a cup of tea or serve an extra serving of meals.
nope never had imaginary friends, but I do have a special bear that has been my buddy for all my life, I take him with me sometimes when I travel and I talk to him sometimes. Mostly I have story characters I imagine, but I don't think of them as 'friends' in the sense of imagining myself interacting with them or talking to them about my life.
I used imaginary "friends" who were characters from public entertainment like Star Wars and such to use them for psychology studying, science studying, and mathematical studying as a child and teenager.
I never had an imaginary friend, but I had Yellow Bear. I don't have him with me anymore...my mom kept it or it's stored away somewhere. I did the usual championship game winning simulation imagination thing as a kid. Playing basketball and pretending I was taking the game winning shot for example.
but I do believe in a imaginary all good being who created us in his imageh:
no, wait, if he created us in his image should we not all be invisible too?
maybe our visible friends are not real
or we could be their invisible friends
This is lame, I have a whole imaginary world xD
I find the concept of "worldbuilding" interesting and amusing. You can learn a lot of things just by thinking of some imaginary world and considering what would realistically happen there. There is a worldbuilding network on stackexchange. I guess it's mostly used by people writing fiction. I find reading some comments there interesting even if I never plan to write any fiction.
Thinking about imaginary things can provide very good ideas. I have come up with some ideas that can be turned into books, movies or games for example.