More descriptively, it's a aspirated unvoiced sub-apical palatal plosive. If you wish to make the sound, position your tongue like you're trying to stick it do

More descriptively, it's a aspirated unvoiced sub-apical palatal plosive. If you wish to make the sound, position your tongue like you're trying to stick it down your throat. The bottom of the tongue should be touching the top of your mouth. Then, make a "tuh" sound. If you do it right, it should sound hollow and "harder" than a normal Englilsh "t" sound.