regatear

A quien vas a dar de cenar, no le regatees la merienda.	To whom you have to serve supper, don't haggle on the snack.
No me regatees, háblame.	Don't dodge me, talk to me.
Consume local, consume comercio justo: Cuando regatees, ten presente el concepto de salario digno.	Consume local, fair trade produce: When haggling, keep in mind the concept of a living wage.
No empieces ofreciendo una cantidad exacta de artículos ni regatees el precio de la visita. Primero asegúrate de que la persona está interesada en la idea del trueque.	Don't begin by offering an exact quantity of goods or haggling over the price of the visit; make sure the other person is open to the idea first.
Un proveedor desea hacer negocios contigo, quiere que seas un cliente satisfecho a la vez que genera ganancias para su propia empresa. No regatees con tus proveedores de manera que al final no quieran hacer negocios contigo.	A supplier wants to earn your business, they want to make you happy while being able to provide for their own company, so don't lowball them to a point they don't want to do business with you.
Y no le regatees, que te conozco.	And don't haggle, I know you.