A simple way to use combs is to hold back your front hair.
Part your hair, then "comb" each side back a bit with a decorative comb. It's important that you insert it the "wrong" way around, the curve not hugging the shape of your head, teeth tips pointing towards the back of your head.
Then hold the hair behind the comb with your free hand and reverse the direction of the comb while the teeth are still buried in your hair. Now the curve is hugging your head and the teeth are pointing towards your face. Push the comb forward a bit while still holding your hair behind it. This should "lock" the comb in your hair. (If you know how to successfully use hair sticks or hair pins, that's the same principle.)
You can do that with your hair parted and one comb on each side, with an extreme side part and only one comb, with no part and an additional comb on top (this almost looks like a head band then), or with only one larger comb on top and sides flowing down loosely.
If you push the comb(s) forward a bit more you'll get a softer look and more fluffiness around your face.
You can do that with the rest of your hair down or in any kind of updo - great when you're growing out bangs or have layers that are too short to stay back in a bun or twist.
Another comb option I like very much looks like this:
Make a pony tail at the back of your head. Losen the elastic just enough to create a vertical slit in the hair behind the elastic, close to your scalp. Loop your whole ponytail through the slit from top, then pull elastic tight again.
Now you have what's called a "topsy tail".
Take the tail up again, creating a roll like you see on the picture. Secure the roll with a large comb - make sure that comb actually sticks behind the original ponytail elastic. Your ends will now stick upwards behind the comb like a fan.
Always make sure you get the right comb size and style for your hair type. If you have fine, straight, silky hair you should choose a comb with many fine, "wavy" teeth that are close together.
As with all hair toys, the wrong ones can damage your hair - if they have sharp seams where the molds were joined (and most have), file those down before you use the comb.
Cheers,
Madeleine
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1cFi, just above bra strap, dark ash blonde hennaed fiery red