I hardly ever need to enter a bank nowadays but today I saw several large notices in my local NatWest branch:
'Please practice social distancing'
I think higher up this thread we found that the spelling is correct in America but I do like the noun with a c / verb with an s distinction. Audible in advice/advise, prophecy/prophesy, device/devise, spellings which I assume are used by Americans, so it is inconsistent not to distinguish between licence/license, practice/practise etc.