I start the masturbation with the 3 finger method, that is. Funds and index finger of the right hand on the underside of the penis and thumbs up. This is best because in my age (70 years), the penis is not as fast stiff. If then increases the excitation potential, I suppose as before the whole hand. This is precisely the advantage of masturbation that you can also meet without a full erection.
As the lubricant has proven best butter in the course of time, I used to use a hand cream which over time is not as well tolerated by the skin. Above all it is important to wash the penis after use, cleanliness is ever a habitual masturbators like me very important because the penis in good condition must always be available.