Tangible rewards refer to those having concrete, visible, and easily measurable characteristics, such as financial remunerations and promotions. Intangible rewards are relatively less observable and measurable, and these mostly originate from other actors in the social environment, such as coworkers and the leader
Examples of tangible : money -giftcards/certificates , coupons , etc.
Examples of intangible : praise , lunch and dinners out , and public acknowledgement/ recognition .