suspiciously

The man was acting suspiciously near the jewelry store window after midnight.

(Chinese) 半夜后，那名男子在珠宝店窗户附近表现得鬼鬼祟祟。

She looked at the stranger suspiciously when he offered her a free ride.

(Chinese) 当那个陌生人提议让她搭便车时，她怀疑地打量着他。