Perhaps the hardest to say is ... "No". It's too easy to be considered or taken advantage of, but it is too difficult to be hated.
There are times when you need to be brave and straightforward, but still have to be clever and delicate:
1. Be sensitive to the refusal
Note the intimacy of the relationship and the refusal. So you can decide what to do. Consider the impact of denial on relationships (friends, relatives, work ...).
2. Knowing clearly what to ask for
We can decide right away without knowing whether "the amount" of the people will keep their promises. However, refusing "bluntness" is less sensitive. "Postpone" for a while to "choose" words, voice and language (body language) reasonable to avoid stress for both.
3. Review required
Please consider the details and areas required. Try to find a union to please both sides. You can analyze it to help the other person understand or suggest a different solution. So you have expressed sympathy and shared with the people.
4. Determine ability
Before denying, determine that you cannot satisfy their requirements, because you are not qualified or you are too busy. If the knack that you rejected, you may lose credibility, so you should consider it carefully.
5. Empathy and understanding.
Know people and know us to avoid bad impacts on relationships. Be sincere and apologize if you can't help them, and show that you always listen, but because of your "heartlessness".
6. Do not send messages, emails or messages
Should call directly to avoid misunderstandings. If not, you may be underestimated because they understand that you despise them. Direct meeting is a good way to be able to understand each other better.
7.Don't delay when you've decided
Don't leave until tomorrow what you can do today. Inertia will make you stifle, afraid and make others misunderstand you. Don't forget: "A disbelief, unbelief". It is also me who lowered my price!
8. Don't be "defensive"
You should not be arbitrary or blame them. Be aware of, accept weaknesses and sympathy when talking. Persistence and conservatism are the moves "dig deep" the gap, can not re-normalize.
9. Don't say "no" while discussing
Still refusing, but instead of saying "no", use "lighter" expressions like "I understand ...". "I can't, because ..." And should avoid "robbery", listen and nod to show sympathy.
10. Don't inflate the problem
Stay calm about the anger and frustration of the school, paying attention to what they say in addition to the unfortunate words they say. Do not "contaminate" their heat or do not "pour oil into the fire". Know that it is not easy to refuse, but put yourself in their situation and understand the impact on them when you refuse. When you find that you are still interested and empathetic, they are more likely to accept your rejection.