I have never been able to get into the flow of walking medtitation, but standing meditation I've done at the beginning and end of basic tai chi movements like lifting the sky, and carrying the moon. I particularly like abdominal breathing to bring me back to my centre. There is a movement in tai chi which is very basic, but I don't recall the name - simply it is raising the arms towards the sky starting from the sides working the arms upward slowly out to the sides. Very basic in action, but very powerful in the building of energy. The energy feels like tingling, static electricity especially noticeable when near the top of the movement.
I haven't done it in quite some time, but now you've inspired me to, and I've pulled a great book out I have enjoyed reading over the years called The Art of Chi Kung.