well, strictly speaking, the saint is supposed to intercede (pray) with God on your behalf, and the actions are God's.
But it is true that many people pray directly to the saints instead of asking for intercession, and some things to my mind are downright pagan superstitions, like burying a statue of Saint Joseph head down in your yard to sell your house.
But I have asked saints to pray for me, for spiritual matters, in the same way you would ask a friend on earth to pray for you.
but why do you think saints (who are dead) can hear you - or have more "pull" with God than you?
I would be especially curious as to any Biblical passages that you point to that teach praying to saints or give an example of someone praying to a saint. Off the top of my head, I can't think of any.
best, AMPU