1. MENTALLY committing to it.
2. Schedule it in and block that time out! Commitment and Consistency are KEY!!
3. Show up and do SOMETHING according to your plan.
One of the biggest sins is 'Doing what other people are doing'.
Example: I am training my client and he or she see someone doing an exercise asking
"Are we going to do that?"
"Because it doesn't fit into your goals."
You have no idea if that person knows what he or she is doing. And if he or she does know, he or she may be training for something specific that does not align with your goals.
You should go in with a FLEXIBLE goal of what you want to accomplish because the gym is not the place to "Wing it". Have a plan and work the plan. This is a recipe for making the best use of your time. Get in and get out. Stay focused. Minimize distractions and chatter (includes email and texting) and you will start to develop "Good Habits". The ONLY excusable form of chatter is feedback to your trainer/workout partner on the effectiveness of the exercise.
You need to be focused, otherwise you will lose your edge.
Remember ... You are mentally committing to be Present!
And to work your plan to its fullest.