The name's Rudy

The first syllable of "RUDY" (RU) has an onset of a voiced alveolar liquids with a rhyme of a low central vowel. The last vowel (DY) has an onset of a voiced alveolar stops with a rhyme of a low central vowel.

IPA transcription: rudi
Start by placing the tip of your tongue on the alveolar ridge which is the rough part just behind your upper teeth, making a "Roo" sound (RU) letting the air stream flow through the sides of your tongue . Then make the tip of your tongue touch the alveoar ridge and say "dee" (DY). Combine both syllables to say RUDY.