One point in the Extraordinary Form of the Roman Rite diverges from the Ordinary Form at a time when a congregant is guaranteed not to have a hand missal or other print resource before him to help him along: the reception of Holy Communion.
In the Ordinary Form, Catholics are accustomed to the formula “V. Corpus Christi R. Amen.” In the Extraordinary Form, the priest pronounces a longer formula, and the communicant says nothing in response: ““Corpus Domini nostri Jesu Christi custodiat animam tuam in vitam aeternam. Amen.” May the Body of Our Lord Jesus Christ preserve thy soul unto everlasting life. Amen.” This is a similar formula to that the priest pronounces at his own Communion.
Note also Universae Ecclesia:
24. The liturgical books of the forma extraordinaria are to be used as they are. All those who wish to celebrate according to the forma extraordinaria of the Roman Rite must know the pertinent rubrics and are obliged to follow them correctly.
28 Furthermore, by virtue of its character of special law, within its own area, the Motu ProprioSummorum Pontificum derogates from those provisions of law, connected with the sacred Rites, promulgated from 1962 onwards and incompatible with the rubrics of the liturgical books in effect in 1962.
This should mean that communicants must receive Holy Communion kneeling and on the tongue. If there are curious readers, I can find the particular rubric on that.