أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
When you reward yourself for anythine you deemed or was interested in then it is intrinsic reward and you rewarded yourself by self satisfactory and happiness.
When someone else rewards you then it is extrinsic reward and it give you profit in some how which maybe satisfactory, money or success.