Hand strength is always relative, so rather than thinking about your hand as "an overpair", you should think about it as:
a) Value hand
b) Showdown value hand /
bluff catcher
c) Bluff candidate
An overpair is rarely a bluff candidate, but occationally it could be. Like maybe you face a river bet with


on





and rather than use it as a bluff catcher and call (or fold), you raise, because you block the A high flush, and you can get better
hands to fold. Most of the time though an overpair is either a value hand, which mean, you can bet and expect to be ahead of your opponents range, when they call. Or its a showdown value hand / bluff catcher, which mean, you should try to get to showdown without investing to much. If you hold the same


on





, there are not to many worse hands, that will call, if you go bet, bet, bet. So at some point you need to slow down and check, and on this specific board that would typically be already on the flop. Then if the opponent bet turn and river, you can call down and hope to catch some bluffs. Or you can bet for thin value, if they check.