If someone gives you a gift do you think you are obligated to give them a gift in return? Why?

No i really dont have to give them a gift in return, that's if i want to. Why, because it was their choice i didn't tell them to give me a gift so not at all, but that will really be nice of them and i will be grateful for the gift. But if i have the money, yes i might just be respectful enough to give them a gift in return.