You might be familiar with the following verse and the idea therein:
“But, speaking the truth in love …” ~ Ephesians 4:15
What is interesting is that this verse in the original Greek,
“ἀληθεύοντες δὲ ἐν ἀγάπῃ …”
can also quite literally be rendered as,
“Truthing in love”.
(*Note: I made the above at this website: http://schooart.weebly.com/graffiti-creator.html and then modified it in Clip Studio Paint.)
~ I really like this word. Truthing refers not only to speaking but so also to doing – doing truth that is. Its truth in 3D. Its truth in action. Truth before your very eyes. Indeed, it is truth for the eye, not just the ear.
The NET Bible puts it as follows: “But practicing the truth in love …” ~ Ephesians 4:15
~ Again, notice that the NET Bible translation indicates that this involves more than just talk, but action also. It about truth-doing.
That all said and that all slightly aside, the primary emphasis of the Apostle Paul has to do with confessing truth in love to others. As Clint Arnold points out in the Ephesians ZECNT, this is about “… accepting the truth of the gospel, speaking it out loud in the corporate gatherings of worship, talking about it with fellow believers, and upholding it firmly.” 
Yet still I must say, I like the minor emphasis of truth-doing. I like the idea of living truthful lives. There is something to truth being done in 3D. There is truth attached to our actions and behaviors. Our actions are not to be deceptive, phony, sneaky, chaloo, cunning, misleading or involving dissimulation – to use a word that the old 1611 KJV Bible uses. They are to be truthful.
 Clinton E. Arnold. Ephesians (Zondervan Exegetical Commentary on The New Testament series Book 10) (Kindle Locations 7170-7171). Zondervan. Kindle Edition.
For further online reading, see also:
(1) Ephesians 4: Truthing in love @ Knowing God through His Word … Day by Day
(2) Ephesians (ESV Edition): The Mystery of the Body of Christ by R. Kent Hughes