After your instructor gives you your dried plater, return to your seat and trace a circle around the edge of each spot. Then place a small dot in the center of each circle. Then measure the distance between the baseline and the solvent front. Do this for each of your four known amino acids. You should be able to discern two spots for the unknown.
Trace circles around each and put a dot in the center of each circle.
Calculate an Rf value for each. Compare the Rf values and colors of the two unknowns with those of the knowns. Hopefully the unknowns will match well with two of the knowns. That will give you the identity of the unknowns. Report your findings on your datasheet as in section 1.