LOL you won't know till you try, will you?
Trying to copy someone without them knowing
I’m trying to get tonic without my dad knowing
I think you meant "how do "I" lose weight without my parents knowing?" My first question would be, why can't your parents know that you want to and/or trying to lose weight??
It may mean that the person is mad at you or the person is trying to get revenge.
Firstly, there is no way to answer that without knowing what converter and what you are trying to convert eg £ to $.
she likes you and is trying to find out wether you like her or not without you knowing she likes you
The devices mentioned in the question can be arragned in many configurations. Without knowing what you are trying to do, this question can not be answered.
Without knowing what sensors you are trying to replace, there is no answer. Please re ask question about a specific sensor.
Can you have an eating disorder without knowing: yes Can you have an eating disorder without trying: yes Eating disorders are mental illnesses, not weight-loss aids, people don't develop an eating disorder on purpose. Often they won't know or believe that they are ill, which makes them difficult to treat. I don't know if this is what you were asking, the question is quite vague. So if this doesn't answer your question feel free to clarify.
It is hard to tell without knowing the context, but in general the phrase probably means that something is wrong with the display and the person is trying to determine what is going on.
By simply not talking to them or not minding them. Better yet try to educate them without them knowing you're trying to teach them of something. :)
No, you wouldn't be able to do your job, if you couldn't communicate with the people you're trying to help.