This page describes notation developed by R. D. Laing and questions that they give rise to. Denote the impression that person A has of person B as A(B). (If "A" and "B" are confusing to you, then substitute "Alice" for "A" and "Betty" or "B".)  Self-perception of person A would be denoted as A(A).  The meta-perception that A has of B or what A thinks that B thinks of A is denoted as A(B(A)). Finally, person A's actual standing on the trait is denoted as A. The nine basic questions that are discussed in the book Interpersonal Perception: A Social Relations Analysis are:

Other possible questions are the degree to which meta-perceptions are consistent with self perceptions or A(B(A)) = A(A) and the degree to which self-perceptions are valid or A(A) = A. It is fun to think up new questions using Laing notation.  Send me your ideas and I may post them here. One idea is to consider A(A_B) or how A sees him or herself when interacting with B.