Whether sending a quick email or presenting a formal, annual award, use the SAIL* method to hit upon the essential points of constructive feedback:
And remember to say THANK YOU!
Managers and peers can provide ongoing, informal recognition on a regular basis at no cost by simply providing the type of feedback described above either in person, through email, at team meetings, or even on a sticky note.
*adapted from The Carrot Principle © O.C. Tanner Company 2007