Air Palm???

[One-Tailed Shukaku]

Neji's Eight Trigrams: Air Palm Jutsu......does he send air out of his palms or Chakra???

[Hidden Ninja45]

Both? I'm really not sure.

[katsu uchiha]

i think he sends wind infused with chakra

[lightshadow]

I think he releases chakra forcefully from his palms, which causes the air accelerate to hammer the opponent.

[SageoftheSixPaths]

He fires chakra from his palms into the air, thus slamming a combination of chakra and air into the opponent in a bullet-like fashion.

[Leaf/Mist Shinobi250]

I think Air Palm is a blast of high pressured air infused with Neji's chakra.

[Memitim]

This jutsu is similar in practice to Eight Trigrams Palms Heavenly Spin, but has a specific target rather than a general area. To perform it, The user takes aim at the enemy's vitals and releases a high-speed palm thrust. A "vacuum shell" compressed using the Gentle Fist is formed to violently push the opponent away. It is shot at the enemy's vitals which is pinpointed precisely with the help of the Byakugan with tremendous pressure.this ^

[Teddie]

Lol at Neisen.
I guess that post kinda sums it up then.
Simplified, you're taking your chakra, and moving your arm faster, so as to move the air in such a fashion that would harm the recipient.

[TheAkatsukiClanPM9999]

8 Trigrams:Air Palm does not have a effect. It just throw you in the air like a tornadoe. Not saying it is strong like a tornadoe. The move is weak. Unless he practices it more and make it another level.

[quinnzy]

I say he shoots chakra out of his palms through the chakra pressure points, i think that is how he does it...