What's a higher risk of getting hiv? through blood or saliva?

Blood: Blood containing HIV virus getting into another person's blood is far more dangerous than exposure to saliva from an HIV positive person.

High risk behavior?: Your query implies high risk behavior that puts you in contact with a variety of bodily fluids. Take extra precautions please! If you don't trust the contact individual in question, then DON'T take a chance! If you think you've been exposed, get tested NOW & start treatment if positive. And, please be responsible not to put others at risk if you may even remotely have chanced an infection.