Several reasons why I take 2 ticks.
My trailing stop got hit..
My reason for getting in has changed, I no longer like the price action.
I am trading off of a directional signal, but I can sense there will be a few minutes of chop... In this case, I exit at top of range and buy at lower range, can be 2-3 ticks. Do this 4-5 times in a minute, and u make ur position basis better, then u stop and wait for the breakout. Do it all the time...
The real question is, if entering for a 2 tick profit, what is your stop?