Cool idea!

Czech: Se mnou můžete mluvit česky.
Swedish: Du kan prata svenska med mig.

Nice!

In Dutch: “Je kunt Nederlands met me praten” or (shorter, so larger letters on t-shirt) “Ik spreek Nederlands”.

The question is, what do we want? An announcement (“You can speak X to me”) or an exhortation/challenge (“Speak X to me!”). Come to think of it, in some languages, one works better than the other:

Slovak: Môžete so mnou hovoriť po slovensky.
Polish: Ze mną można mówić po polsku.
Hungarian: Beszéljen magyarul velem!
Finnish: Voit puhua suomea minun kanssani.
German: Mit mir kann man Deutsch sprechen.
Luxembourgish: Dir kënnt mat mir Lëtzebuergesch schwätzen.
Spanish: Puede hablar español conmigo.
Modern Standard Arabic (to a man): ممكنك أن تتكلم معي بالعربي
Modern Standard Arabic (to a woman): ممكنك أن تتكلمي معي بالعربي
Maltese: Tista’ tkellimni bil-Malti.

Brazilian Portuguese: Você pode falar em português comigo.
Romanian: Puteţi să vorbiţi cu mine în româna. (Not so sure on this one)
Afrikaans: Jy kan Afrikaans praat met my.

That’s a really good idea because it really is a problem finding people willing and able to speak Irish in the urban areas, there are so many protocols associated with when it is okay to engage with somebody in Irish. When I was younger in the gaeltacht you could buy badges that said “Labhair Béarla liom agus brisfidh mé do phus” (“Speak English to me and I’ll smash your face”). This is a more polite way of conveying the same message ;-)

Here’s the new page: http://www.omniglot.com/language/phrases/speaktomein.htm

Simon, just for fear of somebody getting a t-shirt made up, I think that there is a typo in the Irish one, shouldn’t it be “Labhair Gaeilge liom”?

If someone can speak a language, they usually can write “Speak X to me” in that language themselves.

In French, it’s “tu peux”, not “tu peut”.

You can write it “tu peuts” or “tu peux”

Glad you liked my t-shirt idea :) Yes, I did indeed have random people who didn’t know me, start speaking Irish with me! In Ireland we already have the circular badge (aka Fáinne) that people traditionally wear to let others know that they are a Gaeilgeoir, however the loudness of my t-shirt makes it stand out more and opens you up to more opportunities ;)

I’m actually going to make a video specifically about how great my t-shirt and similar ones have been in a couple of weeks for spontaneous opportunities to practise languages in the most unlikely of places. I’ll definitely link to your new “speak to me in” page!! Great initiative!

I agree with Aidan about the Gaeilge typo. And I’d switch the order you did for Chinese and make 汉语 the non-parenthesis one, since people would probably expect mainland China’s Chinese to take precedence over Taiwanese Mandarin.

A couple more to add to the list:
Esperanto: Parolu Esperanton kun mi!
Italian: Parla italiano con me

There are actually two different Gaeilge typos! One in the headline and another in the second sentence.

Ido, Volapük, Interlingua, Interlingue, and Occitan, please!

Just a tiny correction to the Arabic phrases by Bulbul:

(to a male): يمكنك أن تتحدث معي العربية
(to a female): يمكنكِ أن تتحدثي معي العربية

There are many ways to say this phrase mainly because the verb “to talk” got more than one equivalent in Arabic. Examples:
تتحدث (tatah’addath)
(tatakallam) تتكلم
( toxát’ib) تخاطب
(tokallim) تكلم

Each verb might require a change in prepositions and the order of the words within the phrase.
Anyway, a little fact: Even though in everyday life and in various dialects of Arabic people use the word [?araby] (عربي) … and it is even used in that manner in computer applications -and this form is a masculine adjective-, yet originally the languages’ names in Arabic should be in feminine form, like:
العربية (Arabic)
العبرية (Hebrew)
الانكليزية ، الانجليزية (English)
الفرنسية (French)
الغيلية (Gaelic)
etc

This is generally because when we say a name of a language we are referring to the original feminine word: Language – لغة [Lughah], thus we have to use feminine adjectives and not masculine ones.

It follows then, if I was to translate the phrase above, I should use العربية and not عربي.

I have a t-shirt that says “Öva svenska med mig” (practise Swedish with me). I live in Helsinki where 6% of the population are native Swedish-speakers and Swedish is a compulsory subject in school for the rest of the population. It happens occasionally that some of my Swedish-speaking friends come up to me a say: “What a cool t-shirt.” But it has never happened that anyone I didn’t already know started speaking Swedish to me because of my t-shirt.

It is in cases like this when Georgian’s tricky agglutinative grammar actually allows for short and sweet phrases; the literal and very much appropriate translation of ‘speak to me in Georgian’ would simply be მელაპარაკე ქართულად – melaparake kartulad.

Although I should add that a plural/formal form of ‘speak to me’ might be a better choice in such a case; მელაპარაკეთ ქართულად – melaparaket kartulad.

I love that idea and would like to try it with Spanish, though how well this would work would depend on the language in question and your location. I could see it working well for Spanish around here in Texas where I’m at (I think most Spanish-speakers around here would be excited to see someone trying to learn their language) but I can definitely see that backfiring in places like Southern California or Miami.

Cheers,
Andrew

There’s always the ring that somebody promoted at one stage.
http://www.gaelport.com/fainne

한국말:
한국말로 말해도/얘기해도 돼요.
It’s okay to speak Korean (with me).
한국말로 말해요/얘기해요.
I speak Korean./Let’s speak Korean.

台語／閩南語
你會使跟我講台語／閩南語
你會當跟我講台語／閩南語
You can speak to me in Taiwanese/Min-nan.

“Raidió na Life, the Irish language radio station in Belfast”

Forgive me for nitpicking, but wouldn’t that be Dublin? Belfast is on the River Lagan.

Runājiet latviski ar mani. (Latvian)

Well spotted David – I was thinking of Raidió Fáilte when I wrote that.

A Greek friend of mine on Twitter @paraskevee tells me the Greek version would be
μίλα μου στα ελληνικά