to search in one's heart or ask oneself honestly; to reflect on one's own actions and motives

To touch or place a hand on one's chest, indicating self-reflection or an examination of one's own conscience.

to examine one's own heart and feel no shame; to have a clean conscience about one's actions

to feel about; to grope for something

To hold one's tongue or refrain from speaking; literally to hold onto the tongue to prevent speech