To shake your head is to move it side to side to mean no. Shake your head slowly, just shake your head.
It means no across most of Europe and the opposite in parts of Greece and Bulgaria, which catches travellers out. To shake your head slowly can also mean disappointment rather than refusal.
1phraseshake your headTo move the head side to side to mean no.
“If you disagree, shake your head and I will stop there.”
shake your head is a gesture.
Practised in Body Language & Gestures