Airport Ace
What to wear to avoid the unpleasant Massage...
Quick Tip:

The idea when dressing for travel is to be comfortable, but avoid fancy, very decorated clothing. Must consider that you are going to be screened by a Body Scanner or Metal Detector.

Try to avoid clothing with lots of zippersrhinestones, lots of additional pockets, and lots of jewelry in general. Avoid wearing lots of layers if possible.
Examples of clothing that work and rarely cause alarm.
LADIES
Examples of what will likely get you that free unpleasant massage
Gentlemen
The Difference?

Fancy Designs

Thicker layers

More Pockets

Rhinestones

Zippers/Buttons
*NOTE*
Contrary to what some media outlets like to report, TSA Agents would prefer to not have to perform pat downs. 

That being said TSA Agents will still perform their duties as required, but mainly just want the passengers to get to their destinations safely.

TSA Agents are human beings whom also have families and loved ones that they return to each day after work.

Remember when that TSA Agent is asking annoying questions regarding your pocket content or bag content prior to screening, it is meant to be helpful and reduce your chance of additional screening.

Not all airports are the same and may have slight differences in how they prep their passengers for the process due do regional differences and climate differences.