1) Gesture of respect 2) Polite gesture 3) Polite greeting gesture 4) Sign of gratitude 5) Social-media attribution
Found on
https://www.crosswordclues.com/clue/hat-tip
A hat tip is an act of tipping or (especially in British English) doffing one`s hat as a cultural expression of recognition, respect, gratitude, greeting, or simple salutation and acknowledgement between two persons. ==Traditional== In Western societies of the 19th and early 20th centuries, a hat tip was a common non-verbal greeting between frien....
Found on
http://en.wikipedia.org/wiki/Hat_tip
No exact match found.
