wordlessly
adverb /ˈwɜːdləsli/
  /ˈwɜːrdləsli/
(formal or literary)- without speaking synonym silently (1)
- They walked wordlessly down the street.
 
Oxford Collocations DictionaryWordlessly is used with these verbs:- hand
 - nod
 
 - without using any words
- She rocked the baby in her arms, singing wordlessly to it.