During communion, you know some people receive communion on the tongue and others in their hands, someone once told me that you have to make the sign of the cross if you receive it on the tongue, but you don't have to if you receive it in your hands. Is that true? And why so?
I don't think you have to make the sign of the cross at all during communion. The priest makes the sign for everyone before he himself receives. Also, when receiving at the Extraordinary Form, you don't say "Amen," because the priest does it for you.
Another question I have is about the different ways of making the sign of the cross - I think there are three, the first with five fingers of your hand (5 wounds of Christ), then you can do it with three fingers, and there is another way, I think? What is the third way, and what is the significance of the second and thrid way?
I sign myself using two fingers, signifying the divine and human natures of Christ. (I understand that this is the typical Western way to make the sign.) The Eastern way uses three fingers to signify the Trinity and they touch the right shoulder first before the left.
There is also the Spanish way in which using your thumb, you first make little crosses on your forehead, on your lips and on your chest (much like what you use before the Gospel reading at Mass) but with the final tracing of one large cross from forehead to breast and from shoulder to shoulder. This is done while silently praying, "By the sign of the Cross (on forehead), deliver us from our enemies (on lips), O Lord our God (on chest). In the Name of the Father and the Son and Holy Spirit (the regular sign of the Cross.) Amen."
And, a question about going to the novena prayers at Church i.e Novena to St. Antony - they always get us to go up and kiss something - I hate to admit the fact I don't really know what's going on, but just follow what everyone else does. Can someone please explain it to me so that I am not in complete darkness on the topic please?
It's called the "blessing of the relic of the saint" (i.e. Saint Anthony.) The relic is enclosed in a reliquary, by which the saint blesses us and we hope for him to grant our petitions and intercede for us before the Lord.
Most people kiss the relic (the priest wipes the reliquary with a purificator before offering it to the next person), but in my parish, the priest merely presses the relic on our foreheads, as if the saint is kissing us.
And please keep my journey of faith in your prayers, as some of you already know, I am in the RCIA at the moment and hope to be received into full communion with the Catholic Church at the Easter Vigils of next year (March 30th 2013).
I will pray for you at Eucharistic adoration starting tonight.