Ah! AH! Brian, on the continent, such a glas would'nt have foam anymore since months , as we closed our bars and pubs last year ...
You've a chance to finish your glass however before this because your vaccination is running pretty fast in the UK.
In Europe is moving very closely, (In Belgium, almost stopping we find excuses everyday to slow down;, perhaps Belgian are terrified by the presence of a needle !!! Ah! Ah!..... )