Niko Niko (Smiling Warmly)
Describes a continuous, warm, happy, and silent smile. Implies a highly friendly, approachable, and gentle facial expression.
Derived from the single smile action 'niko'. It embodies a friendly, approachable aura, emphasizing warm harmony without saying any words.
Combine with 'shite iru' (niko-niko shite iru) to say 'she is always smiling', or 'niko-niko warau' to smile at someone warmly.
Which onomatopoeia describes a silent, warm, approaching, and continuous friendly smile?