I was EE for Pie when I went back to work, initially every 3.5 - 4 hours (although at first I stretched it out a bit and finished early) - I usually had one pumping session at work, sometimes two.
I was in a shop with no separate room, even the toilets were outside the building & public and no WAY was I going in there. So I shifted a cupboard out the back of the shop (not in public view) to kind of partition the space off and I sat back there & pumped. The noise worried me for all of 5 minutes... really everybody just went about their business. I had one or two conversations with staff while pumping, I had a big T-shirt which i used to change into so i was fairly well covered.

Agree with Kazbah, check the ABA site so you know your rights. I never had to assert them but it did make me feel better just knowing what my rights were should I ever need to argue the point.

Epacris, that is really lovely.