Pick up AA, when someone else gets KK, and hope to get your hold. No I am just kidding. Just play your normal game and remember, its still poker. If I had to recommend one adjustment, then be more willing to call down with
bluff catchers especially in situations, where other players can apply pressure to you like near the bubble. Of course its all situational but against good players in mid and high stakes tournaments you need to sometimes be willing to stick your foot down and then of course also live with the consequenze, if they happen to have it this time. If you always play tight and only get to showdown with the nuts, you will be pushed around, until you have no chips left.