I've encountered a lot of expletives in my life.
Lately, they have been:
The ever courteous "Thanks!"
The encouraging "Go! Go!"
The pat-on-the-back "Alright!"
The admiring-to-the-point-of-envious "Wicked!"
The cow-boy-hat-joyous "Yeehah!"
The incredulous-yet-congratulatory "Awesome!"
And of course the wake-up-from-this-madness "300 Per Day!"
Outside of the cyber world (and the Entrecard community), and in our daily life, "Hooray!" or "Yoohoo!" serves well to accentuate the happy and joyous moments.
Nothing is more effective than "Oh My God!", or "Shit!" to catch surprises thrown our way.
"Damn!" works well to release the anger and frustration within. Though the unpolished "Fuck!" works way better in that sense. Though none would do anything to improve the situation that beckons their services.
The one trusty word that I rely and keep falling back on throughout my life in times of difficulties would be my favourite H-word -