The priest says something in Latin that includes the words “the body of Christ.” Someone will be along shortly to tell you. I don’t know why you don’t, but you don’t.
And, the Precious Blood is not offered because it’s generally been thought to be too tricky to distribute reverently/without risk of spilling. The priest mingles the body and blood in the chalice and that means that when the faithful receive one species, they get both. (I may have that slightly wrong, but someone will quickly correct me if I do!) The priest will drink all of the precious blood, himself.
The priest says the following prayer for each communicant (including the “Amen”) as he is distributing the Sacred Host:
Corpus Domini nostri Jesu Christi custodiat animam tuam in vitam aeternam. Amen.
Translation:
May the Body of Our Lord Jesus Christ keep your soul unto life everlasting. Amen.
The point made re: the risk of spillage is also my understanding as to why the Precious Blood is not offered to communicants. Recall, though, that both the Sacred Host and the Precious Blood contain the Body, Blood, Soul, and Divinity of Jesus Christ. So, you won’t be missing out.
By the way, I completely agree with the recommendation to drive into Chicago to attend a High Mass at SJC. I went there the last time I was in town, and will make it a practice to always do so from now on whenever I’m within reasonable driving distance.
I’m almost certain that they have the popular red missal booklets available, which contain the Ordinary of the Mass (i.e. the prayers that are said during every Mass) in both Latin and English.
The booklets do not, however, contain the Propers (i.e. the prayers – such as the Epistle and Gospel – that vary from day to day) for all the Masses…just for one. So, unless you happen to go to Mass on that particular day, the Propers will be incorrect.
With a little searching, though, you can find the Ordinary and the daily Propers online.