remember people's names

I have been working on it.I feel bad when I have to keep asking them their name again when I see them again.
So I have been trying to think of a clue when I see them.
Example:Sandy—I think of sand
Mike—-think of hiking
Sue——think of sewing
It sounds stupid but it works.I when I see them
I try to remember a clue.
Enjoy the day..

It is annoying not remembering.
I feel it makes the other people feel not important.
There are tricks on remembering that I will have to learn.