Like other stalkers, it is able to speak the common tongue just fine while a baby, but upon becoming an adult, it requires 91 Summoning to be understood. Unlike other pets and familiars, this is 11 levels over the requirement to obtain it, as opposed to 10.
Dialogue says that Sneakerpeepers see in eye-max, a reference to IMAX.
The examine text "Look into it's eye..." may be a reference to Marvel's Ghost Rider, where the Ghost Rider says "Look into my eyes..." when using his Penance Stare.
The dialogue for the adult Sneakerpeeper while less than 91 Summoning may be a reference to Kung Pao Chicken