I wish I'd felt more sociable. Tired, yes; stressed, yes; anti-social, yes. Not really the best way to brighten the birthday boy's life. Although, in fairness, I probably wasn't the most stressed there - on the other hand, my fiancé hadn't had a heart bypass operation the same day, so I think the most stressed person had reason to be so.
I seem to have lost the knack of interacting in groups. Maybe tonight will be better (one friend coming round for dinner, though I still need to decide what to cook).