Mucus-thinning guaifenesin cough syrup and eating an alkaline diet prior to sexual intercourse may boost odds of conceiving a boy, according to Parenting.com. Female on top, female on all fours and other deep-penetration sexual positions may increase odds of conceiving a boy, states ConceiveEasy.com.
Conception close to ovulation may boost a woman's chances of having a male baby. Caffeine consumption by the male may increase odds of producing a boy. Female orgasm may also increase odds of producing a male baby, according to ConceiveEasy.com.
None of the aforementioned techniques actually has any bearing on whether or not a boy is conceived, according to Mayo Clinic.