It is extremely worthwhile for each of us to accept our allocated tractate in writing. That will spur us to make good on our commitment and will ensure that everyone completes the study of their respective tractates.
Let Someone Check on You
It would be worthwhile for each of us to hand our written commitment to someone else – for it is human nature to be greatly encouraged and to push ourselves to make good on our commitment, when we are aware that someone may check to see whether we actually kept our pledge.
How It’s Done in 770
The annual custom here, in the study hall of the Previous Rebbe, is to distribute standard cards and have each participant simply fill in the blanks, indicating the tractate of his choice. Each participant then delivers his signed card to the Gabbai.
Your Name’s on the Wall
They will certainly affix the list of allocated tractates and the names of the participants onto the wall of the Shul, which will serve to encourage and act as a “goodly reminder in the sanctuary of Hashem.” That is the Lubavitch custom. (Igros Kodesh Vol.3, p.51; also printed at the conclusion of the abovementioned Kuntres, p.459).