My approach is to generalize the idea, so that it becomes loose of a specific position. At first glance, this might look a boring approach, but if you make the effort to dive deep into the matter, it might very well prove to be very exciting!
I use white and black circles, which represent pieces of equal value. I should rather not have used a board as background, since that leads to associations with a position. But, well, I used it anyway.
|White to move|
1st move sequence
Now both sides have captured two pieces, so neither side has an advantage. The position has returned to quiescence. Remember, it is not a chess position, there are no contacts between the c- and the f-file.
Consider now the following move sequence:
2nd move sequence
Now white has captured two pieces, and black has captured only one. The position is in quiescence again, so where has black lost a tempo?
1.c2xc4 ;white captures a piece AND threatens to capture c6
1. ... c6xc4 ;black captures a piece AND is NOT threatening something from c4
2.f4xf2 ;white captures a piece AND has no threats left to deal with
In general: in a tit for tat situation, look for the captures with an additional threat.
When you replace c6 with a black king, move sequence 1 isn't even possible. Then you have a desperado or intermezzo scenario.