Some experts still think it is a myth but other experts believe it is made up of compounds similar to semen. And when it happens to me I don't push out to force it to happen-it literally just happens.
It is also white or clear in color-it looks nothing like urine and it doesn't smell bad. It is secreted from the bladder/urethra though so if your trying to do it-empty your bladder first or there will be urine present..
Also they say if you do kegel exercises it makes sex better for both men and women. And it increases the chances of g-spot orgasm.
Everyone is different. Some girls prefer clit, some prefer g-spot, for some they both feel the same, some need both stimulated at the same time in order to squirt, some girls orgasm very easily, some don't orgasm at all, some have multiple orgasms, some have one really intense one and need a break afterwards.
Men all you can do is figure out what your girl likes and communicate coz we are complicated creatures.