A few questions and two thoughts.

Are you so famous that when you speak your first name people instantly know who your are? 

Unless you're Cher, Bono, Madonna, Britney...or maybe The Donald, it's doubtful.

Why do I ask?

Have you ever had someone phone you and say, "Hi, this is _________....then they start yammering.  While they yammer, you're wracking your brain, sifting through all the people you know with the same name, grasping for context and recognition...who is it calling?  Who?  Eventually, something said connects the polka dots and Yhatzee...you know who it is....but, you've missed the sharp point of what they've said so far. Ever happen?

Stop....don't make that mistake...don't be arrogant or lazy by sharing only your first name. Instead use your full name.  Example:  "Hey, this is Ken Brand calling..........yada, blah, chit, chat". 

Using your full name demonstrates professionalism and courtesy as well as creating effective communication.  The person you're calling can focus on what you have to say instead of playing mental twister in an attempt to identify who you are. 

Second thing.

How often does this happen? 

Your phone rings. 

You're conditioned to pick it up...even when you're busy. 

You pick it up and the caller starts talking and talking and talking.  Sure....you picked up the phone, but now you have to run....you can't slide a word in and it's awkward to excuse yourself from the conversation.  Ever been there?

Want to shine with consideration?  Want to glow with professionalism?  Want people to respect and appreciate you?

Here's how.  When you call, introduce yourself with your full name and ask if the person you are calling has time to speak with you.

EXAMPLE:
Ken calls Lynn.

Lynn picks up the phone.

Ken sez, "Hi Lynn, this is Ken Brand with Prudential Gary Greene calling." 

Lynn sez, "Hi Ken".

Ken sez, "Lynn, I know you're busy, is this a good time for you?"

Lynn sez, "Sure." or "Gosh Ken, in fact, I'm just about to jet, can you call me back?"

Either way....Lynn will appreciate the respect and courtesy ...this is positive for Ken.

That's it....two simple tips for better communication and professionalism.

The angel is in the details my friends.  Try it and see.
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The reward for conformity is that everyone likes you except yourself."
- Rita Mae Brown, Venus Envy