I'm lying about my height
What is the point of lying about height?
Because I think certain femme fatales are more vulnerable towards guys shorter than 168cm
You should try to be honest. Lying is not going to get you far especially about something so obvious.
Authority will never know about it, so I don't have to worry about it.
I think that you should not lie to others still. This is a lie that could be easily debunked by a tape measure.