The aim of this paper is to introduce a logically grounded approach to action semantics and action interpretation. The main idea is to present the context of action as a set of questions demanding an action to answer. I introduce (a) a basic procedure of action interpretation, which is a reformulation of Hilpinen's semantical procedure for imperatives; (b) a procedure of what-interpretation; (c) a procedure of why-interpretation. The conditions of mutual reducibility of interpretation procedures are explicated. The paper concludes by putting forth the problem of interpretive bounds of moral responsibility.