I normally wet my lips and the part below the lower lip before starting to play. I do so because it makes it easier for me to adjust the flute position in case I need it.

However, it looks that this is something unusual or possibly not convenient.

What do you think?
Do you play keeping this part dry?
Should I change this habit?

Do you mean where the flute rests when you talk about wetting the part just below the lip? I generally try to keep my lips moist by keeping a little water around if I'll be playing for a long time, but I never wet the area of skin that the flute rests upon. I think it's a little unusual and possibly inconvenient, depending on when and where you happen to be playing, but if it works for you and doesn't cause the flute to slide around more than you want, there's really no reason to change the habit. It's not going to do any harm, and if it helps you feel comfortable and make the adjustments you want, it may actually be beneficial.

Yes, I mean the skin part where the flute rests when playing

MOst people try to keel this area dry. They may even put something on the flute to prevent movement. (Movement changes tone/tuning) They may use a postage stamp or some other sticky thing. They also sometimes have the lip plate engraved with the intent of making motion more difficult.

That being written, I would also say that there can be a great deal of control gained from the amount of pressure being controlled on the lip plate. Too much can influence tone and tuning.

Also, in the winter I tend to use more lip balm to prevent chapped lips. They can wreck a tone.

I've run into the problem that, when I wet the part of my chin the flute sits on, I get sores under my bottom lip. I think it's just a combination of the water always resting against the skin and then drying there and the fact I practice for long periods of time.

Because of the discomfort after a little while, I've found a light layer of lip balm (not anything super sweet or obnoxiously flavored) over my bottom lip and a light dab where the flute rests helps much better than the water. Plus, you can just wipe it away from the flute with a soft cloth later instead of the water drying and forming a sort of watermark on the metal.

(Plus, after a few practices using the lip balm, my lips are softer! Added bonus!)

I have my lip plates engraved which I think helps a little bit.

Thanks you all for your kind answers.

I have to travel abroad for two weeks because of family problems and I will not be able to visit the site frequently. But I will, as soon as I am back.

Keep it funny and enjoy!.

I shave then put a drop of crazy glue

I hope you travels go safe and that everything works out alright, jose_luis! We'll all be waiting for you when you come back!

<Added>

oops. I meant "you're" instead of you... sorry.. ^_^

Jose_luis have fun in your travels.

Micron, what do us women do? I love your idea but I just don't have enough chin hairs!

my..my...
Women could have large circular shaped clamps (rings) embedded on each side of the lips where the head joint could be placed accurately.

Oh my, the visuals on that!!!!

All very good ideas. If we brainstorm we could perhaps take care of other issues by taking it even further.

Maybe.... we could do away with the flute stand, and just hang the flute from our "piercings" on various other strategic areas.

or...

I think, at this point, jose_luis (as well as the rest of us...) would rather have the original problem than solve it by screwing things into our head!!! Hehe...

If we included all these ideas into a musician's movie, we would have a horror story on our hands!

Don't do it, I found the best tone that you can produce is when the lower lip in contact with the lip plate is dry. I found that when playing a long piece of music, I tend to perspire specially if the room is warm and the moisture on the lip plate will make my flute lost its sound and ruin the music! I wonder how the flutists in marching and military bands play on a hot day??

jose_luis, now seriously... When I shave I leave a small portion below my lower lip unshaved, just the amount enough to hold the lip plate. I've noticed that when I shaved that portion the lip plate tended to stick to my skin. Later, after sweating, it happened just the opposite, when it sliped easily. Both situations were uncomfortable, so I tried once to leave that portion unshaved and it worked for me... The hair doesn't let the plate stick and helps absorving and dissipating sweat.

cheers,
Zevang