Page "Click consonant" Paragraph 22

Clicks appear more stop-like ( sharp / abrupt ) or affricate-like ( noisy ) depending on their place of articulation: In southern Africa, clicks involving an apical alveolar or laminal postalveolar closure are acoustically abrupt and sharp, like stops, while labial, dental, and lateral clicks typically have longer and acoustically noisier releases that are superficially more like affricates.

In East Africa, however, the alveolar clicks tend to be flapped, while the lateral clicks tend to be more sharp.