Okay try this one! How would te address Loki if he bumped into you?

Well, I would be happy as a penguin. However, the first thing I would do, is keep my composure, use my infamous pokerface, and shake his hand. I would be fangirling on the inside, but kindly spark conversation. I would easily make him laugh, and, after a few minutes, ask if I can try on his awesome helmet. (I Amore hats, alot.) :3
My reaction:
Me: Oh, sorry man. *Keeps Walking*
*Turns* Holy sh*t, you're Loki huh?
*Folds Hands Behind Back* I absolutely agree with your perspective of humanity.
*Smiles While Bowing Graceiously* I, dear Loki, am completely, and unquestionably, at your disposal.
*Stands Tall, Head Held High* da the way, Amore your battle armor, especially your helmet.
*Looking Straight In His Eyes, Face Straight*

Simple I would bend to my kneels before Him and call Him Master :) Loki should be ruler after all.

I have a habit of looking the people I bump into in the eye when I apologize, so it would probably be something like:

Me: Sorry, I-
...
O_O
Me: Oh dang. Uh... erm... I'm very sorry... your highness? Don't kill me?

id be like dont kill me ill be a servent o somethin ....... plz?? and just do cucciolo dog eyes;)

I would say:
"Sorry my lord" and bow.

Well, if te mean literally bumped into...

Me: Sorry... *continues walking* *freezes* *looks back* *blinks* Oh my.... *bows* My Lord, I am at your disposal.

o something like that.... then I'd beg him to let me unisciti his army.

I would tell him that I was sorry as I always do when I bump into people o accidentally step on their foot while walking around a corner..
Me: Er. Sorry! *Realizes it is Loki* Wait. You're Loki!
Loki: Of course I am.. sposta out of my way..
Me: WAIT! I could help te take over Midgard forever!
Loki: te can? te really would?
Me: Why of course. I would Amore to help te get what te deserve. We would be unstoppable together.
Loki: I like you. I can see te will be helpful to me.

I'm pretty sure I'd do something like blush like mad (just cuz he's hot), stumble over an apology, and then scuttle off to a quiet place to have a small breakdown/panic attack.
It is, after all, the obvious thing to do when confronted da A) an attractive guy breaching my personal spazio
B) detto attractive guy looking absolutely sexy in green
and C) above mentioned attractive guy actually being Loki.
Yeah, I'm pretty sure I've got it all down.

Id be looking down and say oh sorry then look up and say omg ur loki im sorry my lord then get on the floor ndd bow

let's see. if i were waling down the strada, via and had accidentally bumped into Loki (the Norse god of mischief, i would do the following: (a0: i would get down on one knee. (b) i would say, "please excuse me your divine yuumyness and forgive any inconvenience my stupidity may have caused you. (c) i'd ask him out on a date.

Literally bumped into him? Well, here's my reaction:
Me: Oh, I'm sorry, sir! *realizes it's Loki* Oh, uh, in that case I'm really sorry! Hey, I'm a big fan of yours, can te teach me some of your più simpler tricks, seeing as I'm not a superhuman like you? I'd Amore to use them on my little sister and brothers. *If he says no* Oh, ok. Thanks anyways. *If he says yes* Oh great! When can te teach me? Again, I'm not very creative....

I would say:
"Meep! Sorry, sir..." *notices familiar-looking boots and hem of green cape, looks up, sees Loki's face* "Yipe! M-my deepest apologies, Lord..." *squeak and run away without looking him in the eye*

"Ouch, watch where you're going te idio-Shoot...I didn't see te there.....please don't hurt me. I'm on your side! I think you're the true kind of Asgard!"

I never look at people when I bump into them, so I'd probably just mutter "excuse me" and get on with it. XD