o, nɑ, nɑ, wəts maj nem?

The first syllable of "Dani" has the onset of a voiced, alveolar stop, with a rhyme of a low, front vowel, "da."  The next, and last, syllable's onset is a voiced, alveolar nasal, with a rhyme of a high, front vowel, "ni."

IPA transcription: dæni 

Start by placing the rough part of your tongue on the rough, bony ridge immediately behind and above your upper teeth, making a "da" sound, while slightly opening your mouth to create an "ehhh" noise, followed by a "neeeeee."