Guiltily

Tom smiled guiltily.

Ziri looked at his sister guiltily.

Daniel looked down guiltily.

Guiltily, from time to time, she took swift inquiring looks at Mina, who was dressed more carefully, and had fresh plaited her hair.

He was guiltily aware now that he had kept Podson in the dark about the state of his finances to secure that extra fortnight's painting.