1.  Be authentic.  Some people use gifts as part of doing business or politic.  But I prefer to be genuine.  If your boss or your co-worker or a recruiter has been supportive then now is a good time to say thank you. 
2. Be appropriate.  Don't give a present that looks like you expect something in return.  Under $25 is a good guideline. 
3. Be grateful.  Give gifts to people who have helped you whether they are the security guy or the CEO.  Look for ways to show you care.
4. Be unique.  Think of gifts that someone will notice.  Homemade chocolate sauce.  A book that inspired you.  A unique gadget.
5. Be creative.   If you're not working you may not be able to buy gifts even small ones but you can still say thank you with a card, an article or a single truffle in a simple package.

Author's Bio: 

David Couper is a career coach and writer who for the last twenty years has worked in Europe, Asia, and in the USA with major organizations including the BBC, Fuji Television, Mattel, Sony, and Warner Bros.

He has successfully coached individuals at all levels including CEOs of major companies wanting a new challenge, frustrated souls wanting to make their dream come true, and front-line employees laid off and desperate to get a job.

David has published seven books. His works on interpersonal skills, counseling in the workplace, and management issues (published by Connaught, Gower, HRD Press, Longman, Macmillan/Pearson Publishing, Oxford University Press) have been translated into Swedish, Polish, and Danish, and published in the UK and the USA.

David has a degree in Communication, a postgraduate qualification in education, is certified in a number of training technologies, and has a Masters in Psychology. He is a member of the American Society of Training and Development, Society of Human Resources Professional, Writers Guild and the British Academy of Film and Television.

He has dual US/UK citizenship and speaks French and Japanese.

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David Couper, the Official Guide To Career Change.