The first thing to consider is your table image. How has it been allowed to change? You should be in control of what you are doing throughout the game, and not relying on the cards to dictate to you. I have often heard it said that players who play the cards they are dealt, won't win anything. Just think about it. Do you know what hands are beating you in these 'card dead' moments? I guess the general answer is no! So, the other players don't know what you have (or don't have as the case may be). Don't focus on your cards, focus on your play and image.