pattern - What is a Touch Word™?

_{This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.}

---

If a word conforms to a special rule, I call it a Touch Word™.

Use the following examples below to find the rule.

$$\begin{array}{|c|c|} \hline \textbf{Touch Words™}&\textbf{Not Touch Words™}\\ \hline \text{DECOMPOSE}&\text{DECAY}\\ \hline \text{ENEMY}&\text{LINE}\\ \hline \text{EXPEDIENCY}&\text{QUEUE}\\ \hline \text{ESCAPE}&\text{EIGHTY}\\ \hline \text{DEVIOUS}&\text{TEDIOUS}\\ \hline \text{IVY}&\text{EXCELLENCY}\\ \hline \text{FOURSCORE}&\text{UNKNOWN}\\ \hline \text{BORING}&\text{TRICKY}\\ \hline \text{EFFICIENCY}&\text{TEENAGER}\\ \hline \text{FUGITIVE}&\text{EXTRA}\\ \hline \end{array}$$

And, if you want to analyze, here is a CSV version:

Touch Words™,Not Touch Words™
DECOMPOSE,DECAY
ENEMY,LINE
EXPEDIENCY,QUEUE
ESCAPE,EIGHTY
DEVIOUS,TEDIOUS

IVY,EXCELLENCY
FOURSCORE,UNKNOWN
BORING,TRICKY
EFFICIENCY,TEENAGER
FUGITIVE,EXTRA

But don't use it.

Thanks to Engineer Toast and GentlePurpleRain for posting all the words I needed here and there.

Answer

I think I got this one right

While pronouncing(correctly) the word, if your lips 'touch' or if your lip 'touch' your teeth, then it is a touch word