During a lecture and discussion, Paul Seabright, professor of economics from the Toulouse School of Economics, France, said the human smile was an important aspect of social behaviour and the dynamics of trust. After Seabright finished, economist Nitin Desai said if that was the case he “would like to request Kaushik Basu (chief economic adviser and part of the panel) to tell Pranab Mukherjee to sport a proper smile while presenting the Budget”. At any rate, that made Basu smile.