Quite simple for me regardless of the profession . . .   the Golden Rule will never lead you down the wrong path!   Treat others as you would like to be treated.

Aubree,

Once again, I am agreeing with Susan Emo .  A

Dress and act like a trial lawyer. 

Scare people with your knowledge and experience.

Do be on time

Do answer your phone

Do be prepared

Do listen more than you talk

Start with these........

Say what you mean...repeat if necessary

When approaching the fine line...know when to stop

Be patient as the other fellow is learning too. If he is arrogant or ignorant, be extra patient. It comes back to you

Realize your word is you. YOU are your word. This is non-negotiable

Finish what you start. Don't start if you wont finish

NO EXCUSES

Ask Questions. Repeat and never stop until relieved or fulfilled

When representing someone, this is sacred trust called fiduciary. Keep to this and honor it no matter what. Their welfare is entrusted to you.

Always give all you have or you will not have all you want meaning deep down satisfaction. Whats missing will always be what you held back

Ditto under Kenneth J. Jones 

A good place to start is the Realtors COE.

I do a 2 hour class for new agents on professionalism and it includes everything from returning phone calls to putting an agent's sign back up if it blew down. It is all about the Golden Rule principles.

No Commingling is the biggest Don't

The Biggest Do is pretend to make your client your best friend. It helps makes it less stressful for you both.

I was going to say what Susan Emo said. No lying, no theft, obey the rules, don't do what you are not qualifed to to do, etc. It's not unlike other professions

not much different than a Monk's . Dont lie, cheat , steal. Then have a adult beverage nightly to try to forget how us  boy scouts have a more difficult time making a buck versus the slime out there,  selling stuff...

Aubree Matheson If you abide by your fiduciary duties, there are no don'ts.

Like my mentors Bill S. Preston Esq. and Ted Theodore Logan said... "Be excellent onto each other."

Like Susan Emo answered "do unto others..."

there are books written about that topic...  the best answer I can give you is to "do unto others as you would want them to do unto you".....that might be a good start!!

I find the word "professionalism" often thrown around to include anyone who does business of any kind.. period.

Obviously, that's not the true definition but - be yourself, be cordial, dress appropriately and speak with authority and knowledge...

Guessing will get you in trouble every time

This is a topic for an entire post, in my opinion. And Kenneth J. Jones has written that post in an answer in Q&A.  Not much to add... but I will say always being on time is good and treating others like you'd wish to be treated is also good. Richie Alan Naggar also provided an excellent answer.

How would you like to be treated if you were buying or selling a home? Think about that and go beyond that with your clients. It also pays to get along and work well with other agents. Keep your ego out of it. 

Answer your phone with a positive voice, even after losing that that offer made in the last 10 minutes.

Honesty and I believe appearence is number one.  I have gotten listings because I appeared professional when i arrived at the sellers home.

That is what a broker supposed to teach you. Business and common sense helps. Some are born with it. Some characters get fired as rookie agents breaking the rules.

Susan Emo stated the honest facts..agree!!

The others have answered.

Same as in most other businesses.  Treat others as you would like them to treat you.

There are too many to enumerate, but I would say starting with integrity and knowledge is a good beginning.

Susan Emo has it down.  I would add to it, Learn from others and be open minded and join a Board.

Susan Emo sums it up well. Keep it simple!

Tell the truth, but don't sugar coat it.  Be nice.  The client's interest ALWAYS comes before yours.

The number one DO for me is to perform for the client at all times.

Do know your market and your contracts.

Don't try to fake it.

What Kenneth J. Jones said...in spades...

It is a nice picture.

May I ask...., are you from Utah?