How to put the word "Fu" on the mirror?

Inverting the word "fu" means happiness.

Fu characters should be posted outside, either outside the window or indoors. This is not very strict, it depends on your own needs. However, if you stick it at home, of course, the word "fu" is directed at home, rather than sticking one side of the word "fu" on the glass. If you stick it on the outside of the glass, the word "fu" faces outwards, instead of sticking it on the glass and facing home.