The true power of small pocket pairs lies in the fact that they can be amplified to a set on the flop. A set is a combination when you collect three cards of the same rank to your pocket pair, unlike a thrips, in which you will have the same three cards, but two of them will lie on the Board, and only one will be your pocket card. Sets are very strong and hidden hands, with which you potentially have to make a lot of money, as opponents will not often expect to see them with you.
Thus, instead of trying to find out with a small pocket on the post-flop, whether we are ahead or behind, most often we will only need to determine: either we get into the set, or we fold. Try to play a small pocket on the post-flop without improvements-it's not a very plus and quite a difficult game, so try to avoid it.