A very simple way of heightening your awareness to what is going on in the present moment is to draw attention to your sense of touch:

During the day find as many ways as you can to increase your awareness of your sense of touch. For example, notice the warmth of a cup of coffee, notice your fingers touching the computer keyboard,  or the steering wheel of the car at a red light. When you wash your hands really feel the touch of the water, and the softness of the soap. When you lift a glass or cup  feel the touch of the glass, the coldness or warmth due to the contents. Feel the touch of what you eat and drink, staying with the sensations of the food rather than thoughts about it.