It feels like everyone in the terminal is looking at you just a little more closely. I know people, especially nervous fliers, can be a little extra sensitive around these events. I feel a bit more motivation on those days to make sure my uniform is on straight and to work extra hard at projecting a professional image while at work. You never know who needs a little bit extra assurance that they are in good hands.
That reminds me of what the pilot of the DL402 from JFK to LHR said to us passengers a few days after the disappearance of MH370:
As you've seen in the last couple of days, airplane flying can be an interesting business.
Technology will hopefully help us solve our shortcomings, but there's a reason we learn what we learn here in front and kindly ask you to follow some safety rules.