Second Jab: Wednesday (yesterday) about 0830.
No immediate effect. Over the day walked the dog as usual and felt very much as usual, a bit achy but not out of the ordinary. Towards evening I felt I was running a slight temperature. Checked it with my magic VICKS want from Costco, and it was as high as 99 deg F (or about 37.5 C if my calcs are correct). But I felt otherwise okay. Temp. did not go any higher.

Normal sleep.

24 hours later, feel fine, temp. normal (98F 36.7C). So I'd say I had little reaction, but perceptible. It would not have caused me to miss work if I was currently working. And no induced cough, which I felt I did have after first jab.

So my basic advice is: Drink some water before and again after. Stay cheerful. Bring a sudoku or crossword puzzle in case you have a wait. As the Brits (used to) say: "Keep your pecker up!"