I took a furtive look around.
secretive, secret, backstair, sneak, sneaky, stealthy, surreptitious
پنهانی، مخفیانه، دزدکی
( Test )
here was a slight, furtive boy whom no one knew, who kept to himself with an inner intensity of avoidance and secrecy.
Source: Lord of the Flies
In this sentence, furtive means: