Sexual intercourse is a very personal matter! By asking your question about "method" you are entering into a compex consideration, including how the couple feels about each other, birth-control, suitable timing, and of course, the style of sexual interoure, which I think your question is really addressing the last aspect, but all of these aspects are combined in one way or another.
The best "method" is the ways that you and your partner agree is the way that you both will enjoy, but with spontaneous sex, you probably will not be able to share in your mutual wishes that you have not already discussed or tried out or practiced before.
I hope my answer does not seem vague, but sexual intercourse, like I said, is a very persoal matter that is based upon honesty, trustworthiness, and consideration by both sexual partners for each other. You will develop your own style that meets both of your needs by relating with each other to find each other's happiness.
Filtration, sedimentation (settlement), centrifuge, decanting
The clay is most suitable for making toys.
The most suitable units to measure the height of a person are, feet and inches.
They find out by have sexual intercourse with them and see how their reproductive organs are working.
no
Networking.
contour plowing
Missionary or man on the top is the simplest, most common and popular method for sexual intercourse.
cluster sampling
use sublimation set-up...
yes because it helps what ever you are harvesting suitable.
bcz titration is da worst method
Sex. Sexual intercourse is the method that our species - most mammals, actually - reproduce and create new human beings. It is quite effective.
Condoms both safest & easiest.
The comparative forms of "suitable" are "more suitable" and "less suitable". The superlative forms of "suitable" are "most suitable" and "least suitable".
in what circumstances is the reducing balance method more appropriate than the straight line method?
is not suitable for obtaining primary data