If the other vampire has high enough Auspex (I believe you get Aura Sight at 2, but I'm not sure) and if you don't have high enough Obfuscate (the aura masking ability of Obfuscate is a higher level though, 4-6 not sure which)
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Yes Auspex level 2 you gain Aura Perception. Been a while since I've read the rule book. I guess you need Auspex level two in order to see the aura.