2 adverbs to describe how to peeked

They came by ones and twos and idled in front of the swinging doors or slyly peeked through them and then whispered one to the other.

I used to peek in at them, never so softly, in Dona Ina's living-room; Raphael-eyed little imps, going sidewise on their knees to rest them from the bare floor, candles lit on the mantel to give a religious air, and a great sheaf of wild bloom before the Holy Family.

2 adverbs to describe how to  peeked  - Adverbs for  peeked