This is good. However it can become a distraction. Remember that the work you're doing is the answer to someone else's prayer. Keep first things first. Don't accept the responsibility of say leading a Rosary if moments later you will have to break away and talk to someone.
Short prayers are best, that is ejaculations.
Sometimes it's possible to pray mentally while waiting to talk to mothers with crisis pregnancies. This is a great blessing. Religious reasoning Religious reasoning against abortion can be effective. The key is to use it only with religious people. Catholics should be reminded that the canonical penalty for abortion or assisting in an abortion is excommunication from their Church.