You become his physical focus
After the initial first few weeks of dating, there’s usually a drop off of attention as you become more familiar with each other. But when a guy decides he’s found the one he wants to be with forever, he reverts to the touchy-feely beginning of the courtship. So if you notice that he’s suddenly touching you more, both in public and in private, that’s a good sign that he’s very comfortable with your intimacy level and might be ready for a big commitment.
His conversations about work go deeper
When a guy talks about work outside of work, generally he just needs a sounding board for problems that he cannot talk to coworkers about. But when he starts telling you about his career goals and aspirations, about his good days along with his bad days, and especially things that may affect his off hours with you — change of position or different work schedule — then that’s a good sign you’re part of his equation.