Is the prohibition on the giver or the receiver. Paying a non-Jew.
shailos with mixing red and white wine; mixing tea essence with hot water;
ודבר דבר (Dabair Davar): Talking to a Non-Jew on Shabbos;
Making a Bruise or Using a Toothbrush When One's Gums Might Bleed. Using Floss, Toothpicks, and Dealing with Blood from a Cut;