шнырять означает в английский

prowl [prowled, prowling, prowls]▼(to rove about in a stealthy manner as in search for prey or booty)
verb
[UK: praʊl] [US: ˈpraʊl]

slink [slunk, slunk, slinking, slinks]▼(sneak about furtively)
verb
[UK: slɪŋk] [US: slɪŋk]