Hello GLOW, glad to hear of your interest in the Catholic church!
1-- I am not Catholic but I do Veil, I have veiled for about 9 years now,and I was wondering if it was okay if I veiled in Mass?
Assuming you’re female, it’s fine. If somebody makes a remark about it, just ignore them.
By the way, the correct term is “cover your head” because the verb “to veil” properly refers to the veils of nuns and religious order sisters only.
2-- Since I am not Catholic, can I enter into Church, do the Holy water,and make the sign of the Cross? Or is that just for full Catholics?
As long as you’re doing it with reverence and with some idea of what it means, it’s fine. You don’t have to be full Catholic.
3-- Would I or Not do the genuflect ?
Most Catholics will genuflect towards the tabernacle (usually, though not always, located in the center of the altar) when they arrive before sitting in their pew, and when they leave church as they leave their pew. You can do it too if you want. Just follow what others are doing.
4-- Would I talk to the Priest after Mass to let him know I am going to start coming to mass?
You can say hello to the priest if he stands by the door shaking hands as you go out, but it is not necessary to tell him you will be coming to Mass. Priests don’t really keep track of a particular person’s Mass attendance, and anyone is welcome at Mass as long as they don’t disrupt the service.
5-- Are most Catholic Churches open at all times so if I feel the need to go pray I can?
For security reasons, most Catholic Churches in USA are closed and locked when there is not a Mass or some other activity such as confessions, choir practice, wedding rehearsal etc going on. Some parishes and colleges have chapels that are open during daytime business hours for anyone to come in and pray, and some large cathedrals or shrines are open during business hours for tourists to come in and pray or visit. Most churches and chapels are closed during the night unless there is some special prayer event going on, or they are open only to certain people who have an access code or key.
In some other countries, churches may be open more frequently. Check with your local parish to find out when the church is open.
(Continued next post due to character limits)