One of the best advice I've ever received many years ago about "magic techniques" came from a magician at The Magic Castle named, Rich Cowley. He's a terrific guy and a great entertainer.
He was showing me a trick and he told me to shuffle the cards, which I did, then he said, "OK, now show me the top card". And I did. Only thing was because I was being the spectator, I showed him the card in a way that was completely unlike my DL. He said, "That is exactly how your DL should look like". He was giving me a lesson in the middle of a trick because that was when I was going to be at most natural.
From then on I started to look at all moves through that same lens:
1) If you're doing a coin matrix, how would you lift the card if you weren't stealing the coin? How would your hand be positioned? How would your shoulders look? Etc.
2) If you were really placing a card in the middle of the pack (Marlo Tilt), how would your hands be positioned? How would your head be angled? Etc.
3) If you were really NOT palming a card, how would your hand, arm, shoulders, body be positioned? Etc.
4) If there was really nothing under that cup or that box is not tricked out or those cards are really not stacked....etc etc....you get the idea.
It's a nuance that has increased my technical (not performing) abilities dramatically without me having to learn one single new move.