When your nearing the bubble you need to decide how important it is to you to scrape the money if it is realy important sit thight and dont take any chances. If you however wanna finnish top 20 or deeper this is the perfect time to play some cards. It is said that you need to use this time to steal the blinds from weaker players. But nowdays so many use this strat that often it is half the table trying to steal the other half blinds. So I think a better strategy is to see if you cant score a good hand and bust some blindstealers hand.

Just like AQ vs 65. Well have a look on the table your at sometimes you can find a table where you can steal blinds . But it ussually when you allready got an good stack ,then it sometimes enough to just double the blinds of struggling players. Better luck next time.