Answer: positive reinforcement is the process of establishing or encouraging a pattern of behaviour or attitude by offering rewards and recognitions whenever the behaviour is exhibited.
The example of positive reinforcement is; An angler catches a record fish at night and decide to stay out late everyday.
This is a positive reinforcement because a reward was giving to the angler, for exhibiting the attitude of more effort and more time to his work. The reward was the fish he catches and the behavior was staying out late at night everyday. This is a positive reinforcement, because a reward was giving and not a punishment. This reward will make that behaviour to occur more in that person.