I have accrued a number of techniques over the years and I will share some with you all.
I am circumsised and have never been able to generate hardly any pre-cum which is a shame.
But, with a nice smooth pair of silk panties I find that I am able to bring myself to near orgasm in such a way that when I near the climax I only have to dangle the panties tantalising near the tip of my cock to start the surge. It takes some training but I find that the cum oozes out ever so slightly at first. I could never get that control with my hand!
Depending on mood I can wrap the panties around the shaft and finish the job or leave and have a sample taste before starting again.
Second tip. Leave the cum to dry on the panties. Do this a few times then on the fifth or sixth occasion stuff the dry cum panties in your mouth. SOOOO intoxicating gives a guaranteed boner.
Anyway more techniques to follow...