After sending Spike to fetch some supplies, Twilight settled down in front of you.  Looking up expectantly,  she asks, "Where should I start?"  You shrug your shoulders.  "What do you want to know?" You ask.

"First of all, what are you?" She asks.  

You respond, "A human being, but we just call ourselves 'people'."

She scribbles something down.  "Where do you come from?"

"From the looks of it, I'd say another dimension." You say.  

Twilight looks at you.  "You don't know how you got here, do you?"

You frown.  "Sadly, no."  She nods her head, and gives you a look of sympathy.  "Since you can talk, I could assume that all humans are sentient.  Am I correct?"

Rainbow buts in.  "Yeah, he told us that he was on the way here.  It means that you can think and talk and stuff!"  She smiles.  Twilight eyes you suspiciously, but says nothing.  She continues, "What's that, on your shoulder?"  You look down.  

"That is the weapon I was issued when I was in the military."  She looks worried.

"W-what does it do?"  You frown.  "No need to worry.  I would never use it here."  She looks relieved for a minute.  "Anyways," you start, "This is a standard M4 carbine.  It fires a projectile from the end of this barrel.  It does this when I pull this trigger, sending a hammer into the back of a casing that holds a small amount of explosive powder.  With the force from the explosion having nowhere else to go, it forces the projectile out of the case, down the barrel, and to the target.  It can go on semi-automatic, meaning it will fire every time I pull the trigger, or it can go on fully-automatic, meaning I can hold down the trigger, and it will keep firing.  The projectiles, which we call 'bullets', are stored in this magazine right here."  Twilight is in awe at what she heard, scribbling notes all over the parchment Spike got her.  Rainbow and Scootaloo seem amazed, too.

"Wow," Twilight says, "Your military is really advanced!  We use spears, and sometimes, that doesn't even intimidate ponies!"  You stop her.  "What do you mean by 'intimidate'?"  "Well,  what would you use that for if it's not for intimidation?"  She asks.  You respond,  "We use them for war and protection."  "But...  Wouldn't that kill somepony?"  She says.

It's your turn to stare at her in amazement.  "Well, yes.  Brave men who are willing to die for our country-"  She stops you.  That's terrible!  How could you kill another of your species?  Let alone SIGN UP for a chance to be killed!"

"It's a patriotic thing.  I love my country and most everyone in it, and I would be willing to die for it."  You say, speaking from your heart.  She shudders.  "You said a while ago 'back when I WAS in the military.'  What happened?"  She says, gaining interest.  You frown, feeling like you let someone down.  "After several tours, I developed post traumatic stress disorder, and was honorably discharged."  Twilight sorta frowns, too.  "I'm sorry to hear, that... What did you say your name was, again?"

"My name is... well, it'd be better if you just called me Smokey."

She smiles, and offers her hoof.  "Nice to meet you."

You take her hoof, and shake it firmly.  "Nice to meet you, too."

"So," She says, "Just to clarify, your not going to hurt anypony with that... weapon... are you?"

"No," You reply, "I would never dream of-"

"DIE MOTHERFUCKER DIE MOTHERFUCKER DIE MOTHERFUCKER DIE!"

You spin around and see Scootaloo sitting in your duffel bag and playing on your phone.  She must have gotten bored of your lecture.  Quickly grabbing it and cutting the song off, you turn to Twilight to explain yourself.  "Sorry!  My cousin put that on my phone a while back." You scratch the back of your head.  "I'll get you for... THAT... later.  Anyways, that's a PHONE?"

"Yeah, and you can do lots of other things on it, as Scoots here just demonstrated." Scootaloo smiles sheepishly.

"Hey, can you still call other 'people' on that thing?"  Twilight said.  Your eyes light up.  "Yeah... Hold on."  A smile forms on your face.  You dial up 911.  After a few moments, the call disconnects.  "Huh, weird..." You say, now calling one of your friends to see if they could call the police, if they could do anything, that is.  After a few more moments, the same thing happens.  "Damn-"  You look at Scootaloo. "Darn. I guess I'm cut off from my contacts.  I wonder if the internet will work..."  You look at the ponies around you.  deciding that you most likely DON'T want to show them the internet until later, you hold off on your curiosity.  It did, after all, kill the cat.  "Well, at least I still have music.  And by the way, that's not the type of music I listen to.  As I said, my cousin put that as an alarm on my phone to annoy me, and I guess even though I took off the alarm, It was still in my music library."

"Wait, you can have a whole LIBRARY of music on that thing?"

"Yep.  And with certain apps, or applications,  You can read books, too."

"That's AMAZING!"

"Yes.  I usually read science fiction or horror genres."

"WOW! You have to teach me how to use that sometime!"

"Fair enough.  But if you don't mind, It's getting dark, and I have to get to the woods or someplace to set up camp.

Suddenly, Rainbow and Scoots bow down.  Twilight smiles at something behind you fondly.  Turning around, you see a pure white pony as tall as you are, with wings and a horn like Twilight.  She speaks, and her voice is almost as majestic as herself.  "That won't be necessary."