Taping the mic near the collarbone helps it pick up good audio because the subject’s clothing doesn’t move much at that location, so there shouldn’t be too much rustling over the mic. This makes it one of the most universally used hiding spots.

Note that the mic’s cord will be visible from behind. However, you can fix this by having the subject wear a blazer or suit jacket to cover it.

To hide the mic even more, tuck it underneath the flap between 2 buttonholes. Wrap a piece of moleskin tape around the mic to reduce rustling sounds from the fabric moving on top of it.

If you decide to hide your lapel mic in a tie, wrap a piece of moleskin tape around it to reduce contact noise. If you feed a lapel mic down through a tie knot, make sure you’re using an omnidirectional mic, otherwise it won’t pick up the subject’s voice well.

This hiding spot often leads to recording more bass notes from the individual’s voice, so it can also be a good choice when you’re looking for that kind of an effect.

Keep in mind that the mic wire is visible from certain angles with this method, so be aware of your camera placements to avoid capturing it on film.

Note that this doesn’t work well for flimsy hats, such as those made from straw or mesh.

Note that this works better for smaller mics that are easier to disguise inside the hair. Darker hair is a plus, too.

Be very conscious of privacy and comfort issues if you use this method, especially if you’re a male. Female costume designers and set workers may be able to help set up a female subject with a mic this way, as long as they’re okay with it.

Another idea is to build mics into accessories like canes and walking sticks.