How's best to weigh myself naked or not?

Doesn't matter, as long as you do it the same way every time. It isn't about the number on the scale, it's about how that number changes over time. If you wear the same clothing every time you weigh yourself, you eliminate a source of error.

Naked.

It doesn't matter, as long as you're consistent.

Naked means no excess weight added by clothing.

Depends on why.
For max accuracy you should be nude.

Lmao..naked baby girl