There's a white tablecloth restaurant I like for lunch, but I need advice about how to feel less rushed. The bus staff refills the water every time my glass gets less than three-quarters filled and they want to clear my plate before I'm finished. There aren't patrons waiting so it's not like they need the table and I want to be able to enjoy my conversation without saying 'no thank you' every few minutes.
Any advice as to the most effective and polite way to be left alone? I draw my water glass closer when I see them ready to pounce and try not to make eye contact until I'm ready to have them take my plate, but this whole dance is feeling distracting.