She uses Tic Tacs as an example of all of the candy / gum / mints - etc. that the gift shop sells. I don't know if she said "ringing in" or ringing up" which means to make on sale on a cash register. In the US we'd say "ringing up" but maybe that's different in Canada.
So she would casually ask the staff what they did for the hospital while she would ring up their small purchases.