Getting to understanding with people clients or otherwise made me think
Every Nut Need Not Be Tough To Crack.
People can have a tough exterior, be like clamshells sometimes with revealing the truth to you, or appear not to have "chemistry" with you.
But a few keys to getting them to "crack" or warm up to you:
Find something you have in common with them. THEN, they really will open up. Be persistent in asking lots of questions and eventually on some level you will connect. Don't forget as I have mentioned before genuine compliments. Everyone likes to know something good about them. and finally,
PRACTICE HUMOR. Nothing loosens people up and is an ice breaker than something funny shared.
Do you best with the nut cracking. Some people want to be tough cookies with you but deep down most of them really are sweet.