Just act cool, look totally unbothered, and look up to the board as to when the next one's coming. Don't even grace them with a look their direction :)
Be careful, and don't stick your arm in the closing door.
Point and laugh at them all as if you know that something terrible is about to happen to that train that they don't know about...
Keep on running down the platform in a random direction, as if you were running to a different place anyway.Find a place devoid of people, stop, and calmly go about your daily business.
never run to catch the subway
I agree with atbeen. Never run. It is undignified. Ladies and Gentlemen never run; one must carry oneself with an air of decorum at all times.
wave sadly to everyone as if at a puppy that you're having to leave behind
look up to the skies and scream Noooooooooooooooo
Turn your hands into liquid metal poles with hooks at the end like the T-1000 and latch on.Easy-peasy.
Cry. Shameless heaving sobs.Nothing says 'damn I really wish I made that subway car even though the next one comes in 4 minutes' like crying does.
You are all terribly, terribly wise. I will be trying these suggestions one at a time, of course, with the prediction that Chris's and Jonny's will produce the most violently amusing reactions.
I'd just go ahead and be pissed.