Well,

Neji attacks is not physical, but energy based ones, so even though he moves physically, you may think that on his fingers something happen and he does like a knife of energy (syringe or whatever) and touchs the right spot... it is delicate use of chackra, just few can achieve that level, even within Hyugaa clan... The holes are tenketsu...

About Kiba, he just needs hand seals to Half Beast Transformation, the rest is taijutsu, what means, just physical attacks...