
“Many men don’t even notice it at all“ – really? I guess that does not account for all you guys reading this! Precuming is very well a highly arousing subject in its own right. And the fluid itself is nothing less than perfect. It is crystal clear, absolutely lubricating and bears a slightly salty taste (if any) assumingly with the majority of guys. It signals that its producer is sexually excited to his core! Hence we can read the above picture this way:
The guy is as much aroused that he is beginning to literally get wet (no difference to women here, by the way). A first pearl of precum appears at the meatus (piss-slit) of his erect cock. He may either begin to enjoy himself witnessing more precum to rise from the depths of his awakened system and watch his nectar drooling down over his glans and cock-shaft, or he will utilize his produce to lube his helmet to achieve exquisite sensations while stroking his tender cock-head. Sooner than later the whole scenario may resemble this image:

Similar to the (key feature of the) seminal vesicles, the Cowper’s glands constantly produce fluid when the male is sexually aroused. Unlike the seminal vesicles though, the Cowper’s glands don´t store their produce but secrete it continuously into the bulbous portion of the urethra where it travels immediately upward within the penis to surface at its tip. This outstanding biological feat is one to enjoy in any sexual activity and may be incorporated into specific delights such as (pre-) cum-harvest and/or edging!

Update!
I need to mention very tiny urethral glands which are mainly neglected because their contribution to the overall sexual secretion is really small. I quote from Wikipedia:The urethral or periurethral glands (also Littre glands after Alexis Littré, French physician and anatomist (July 21, 1658 – February 3, 1726)) are glands that branch off the wall of the urethra of male mammals. The glands secrete mucus, which is incorporated into the semen, and are most numerous in the section of the urethra that runs through the penis.
nandisa.wordpress.com/2010/05/17/precum-%E2%80%93-pure-nectar-1/
I found a suggestion on the JackinForum on how to play with your precum when you are highly aroused (i.e. edging). It is a stage just before savoring the practise of repeated emission-climax (which I already elaborated in this blog) and it naturally may consist of the Stop & Go method:
Start after you are aroused enough to produce some pre-ejaculate. The aim is to deliberately elicit pre-ejaculate without having an orgasm, thereby cultivating and controlling near-orgasmic sensations. When you first emit a small droplet of pre-ejaculate, do not wipe or smear it around. Instead, keep it balanced on the head of your penis and concentrate on growing it into a big pearly bead.

