These guys above are right! Nothing else to add but an example:
You shouldn't say this:
- Would you give me your number?
Instead say:
- You are cool but i have to go, but before that, give me your number and i'll text you latter
You are cool - works as an excuse like: "I just want your number because you are cool"
but i have to go - triggers the idea of: Oh don't go now, i'm cool you said! (also reinforce the excuse)
but before that - It says, "i have something to ask you, pay attention"
give me your number - Command: what you really want to achieve
and i'll text you latter - It prepares her to receive a text from you.
---
Also when you ask something and after you say:
"Is it ok to you?" you are basely saying to the person to accept it!
---
Or when you instead of:
Would you help me on my homework say
help me on my homework
You are not asking so you are not making able to the other person to say no.
---
There are so many examples, but i guess you got the idea of it
