In Czech, that can mean either cheers or bless you! There are many things the Czech like, and among those is liquor. And beer. But akin to the list "Stuff white people like" (see:
http://stuffwhitepeoplelike.com/) I have started to compile my own "Stuff Czech people like". I have not placed these in order of importance, simply the order that comes to mind.
Drinking
Beer here is cheap. REALLY cheap. Like averaging $2 a pint cheap. Like $1 at the grocery store cheap. Alternatively, you can also obtain booze at cafes, chinese food takeout places (I saw a couple walk in, buy 10 bottles of beer and then leave a "Cinske bistro" here), or any other number of locations. To date I have already had: Staropramen, Starobrno, Krusovice, Budweiser Budvar, and Pilsner Urquell.
In addition to beer though, the Czechs have a whole array of their own liquors: absinthe, becherovka, slivovice, and something labelled as "Fernet stock" that I'm still not what it quite is, just that it burns like hell going down.
How I Met Your Mother (and to a lesser extent the Big Bang Theory)
It is quite often when chatting with people you've just met about movies, music, TV shows, etc. and it is also quite often that How I Met Your Mother will inevitably come up. A discussion will then follow about which character you like the most (if you exclaim Barney this will extend this topic of conversation by approximately 3 min. at least), and your foreign friends complaining about the length of time it takes to subtitle the new episodes. They will also lodge a complaint about how lame the best lines are translated. For example, Barney's "Legen...wait for it....wait for it...and I hope you're not lactose intolerant because the last part is .... DARY". That does not translate as such. I have not obtained the exact meaning of the translated phrase, but I do know it is "lame".
Once How I Met Your Mother has been exhausted as a topic of conversation, it will move on to the Big Bang Theory. In lieu of discussing characters and funny lines, the conversation will probably drift in the direction of how many you friends you know who are exactly like the characters in the Big Bang Theory.
Non-stop! (Casinos...bars...etc.)
Here they don't seem to use the phrase "24 hours". Instead they have stumbled upon the phrase of "Non-stop". You will see this plastered all over bars and casinos across the city. I still mentally chuckle a little when I see it.
Hockey
Like Canada, hockey (along with soccer) rank as the most important athletic endeavours here. If you ask any Czech person who follows hockey, they will probably be able to give you 3-5 names of Czech hockey players who were formerly or are currently in the NHL. The only name I have recognized to date is Jaromir Jagr. Although I think I was told that there is currently a Czech Flames player.
Czechoslovak Superstar
All I really know is that this show is the equivalent of the Idol show franchises. I realized this liking for the show after spending time with my buddy and her friends. Needless to say, I only knew it was about the show, not the specifics of the conversation that were occuring.
A terribly tempting but really bad for you diet
They eat a lot of meat here. There doesn't really exist what we would consider salads here, their salads usually consist of pickled cabbage and carrots (it's better than it sounds). They also have fried cheese here. It is essentially a block of cheese, rolled in bread crumbs and fried. SO good, but so bad for you.
Attempting to speak their language
When you use fairly tourist-y lines such as "Djekuji" (thank you), or "Dobry den" (good day), most people smile and seem like they're humoring you. When you move onto more advanced lines such as "prominte" (excuse me, I'm sorry), "mluvite anglicky" (do you speak english) they are fairly amused. When you really start speaking whole phrases in Czech, that's when they get excited. They might proclaim "aww, you're so cute when you try to speak Czech" or "whoa, are you learning Czech?". Mainly because it is kind of an insane Slavic based language and rather difficult to pronounce for native English speakers.