Praying at an abortion clinic can be a very moving experience. Some people are very intimidated, some gain a very valuable spiritual connection to those involved in the abortion industry, and others love being the public witness of faith.
Plan to pray for a half hour or an hour and prepare a short plan for what you are going to pray. You can find many Prayers to End Abortion online, pray the rosary, the divine mercy chaplet, etc. Go through the plan with the youth you are bringing.
Be sure to ask someone who has prayed at that specific clinic before to find out if there are any laws or anything you must follow. Most times you will be able to pray on the sidewalk, but it’s better to find out before you go than have the police show up to take you the youth away!