From Human Behaviour point of view, I think that perhaps today may be counted as the first proper day of spring around here.
Walking into town, I saw a student lying flat on his stomach on the lawn outside a school building, reading a book. (Don’t ask why the sofa is outside - or, seeing that it is, why he was not using that. I haven’t got a clue! But it is a sure sign of spring, because it wouldn’t happen in winter!)
Approaching the main square, there was music in the air. It turned out to be coming from live street musicians; and lots of people were sitting around just enjoying both the music and the sunshine.
I got infected by the spring bug as well, and got some balcony stuff out from winter storage. My clematis plants will remain covered for a while yet though as otherwise the variation between frosty nights and sunny afternoons may be too much of a shock to them.
(And yes I will be careful with myself too.)