Nehtdx

During the Episode 1 of Season 8, Winterfell, Jon Snow and Arya finally meet again each other. During this scene, Jon notice that Arya has kept the sword he offers her during the first Season, Needle. When he asks Arya if she has ever used it, she just asks "once or twice"

While she killed quite a bunch of folks, she didn't use Needle each time. For example,

she killed the Freys with poison, not needle

How many time did Arya actually used Needle?

by "using Needle", I assume Jon Snow mean use it to kill someone, but I'm also interested in other occasions where Arya used Needle

Four people have met their end via Needle so far.

While Arya has caused much more destruction these are people who met their demise by being stuck with the pointy end.

1. The Stable Boy - This one was an accident, but she poked the stable boy in Kings Landing in the belly which killed him.

2. Polliver - While traveling with the Hound a brawl breaks out in a Tavern. Polliver is the one who took Needle from her in the first place and is kindly introduced to the pointy end. They just wanted to eat some f**king chickens man.

3. Rorge - One of the three Arya saved from the burning wagon. He ends up attacking Arya and the Hound and meets his end with another stab in the belly.

4. The Waif - After deciding she is not No One, she is Arya Stark of Winterfell and is going home, The Waif confronts her. The deed is done is done in the dark after Arya draws Needle and cuts out the candle.

Arya has killed a bunch of people but using Needle she has killed only 4 so far.

1. The stable boy (a stab in the gut when she is escaping from Lannister soldiers in Kings Landing


2. 
   Unnamed Lanister soldier (a stab in the gut when she's with the Hound & they encounter Lannister men in a diner & fight breaks out over chickens) She does it with a sword & then picks up Needle. Added in other list.


3. Polliver (a stab in the throat when same as 2)


4. Rorge (a stab through the heart when he & another guy attacks Hound for collecting the bounty placed by Lannister)


5. The Waif (we actually don't see it as she slashes the candle in half in that secluded room)

Other men Arya kills without Needle

1. Unnamed Frey soldier (multiple stabbings with a knife. After the Red wedding, when Arya & Hound find them shit-talking the Stark massacre, she steals a knife from Hound)


2. Unnamed Lanister soldier (a stab in the gut when she's with the Hound & they encounter Lannister men in a diner & fight breaks out over chickens)


3. Meryn Trant (slashing throat with a knife in a brothel)


4. Lothar & Black Walder (killed & cooked into a pie)


5. Walder Frey (slashing his throat with a knife as he's eating Frey pies)


6. Frey bannerman (using poisoned wine)


7. Littlefinger (slashing his throat with the dagger he gives Bran, at his trial)