Normally plants are pollinated by birds, insects and the wind. Pollination is how plants reproduce in the form of seedpods. However, houseplants do not have that luxury. If you wish to pollinate houseplants, you either have to set them outside and hope for the best or you can do it yourself. Pollinating houseplants by hand isn't difficult as long as you have male and female flowers to work with.
Identify the male and female flowers on your houseplants. The male flowers will have a stamen with pollen in it while female flowers will have a stigma to receive the pollen.
Cut the male flowers from the houseplant with the scissors.
Rub the face of the male flower on the face of the female flowers, making sure the stamen is rubbed on the female flower's stigma to ensure pollinating.