In order to strengthen his ability to draw from nature, Lin, starting freshman year, would complete a drawing of a different plant ever day. He also kept a pocket-sized sketchpad with him wherever he went, and he would sketch during his commute.
為了加強寫生能力，從一年級開始，林之助每天利用課餘完成一種花木的寫生，還隨身攜帶口袋型畫簿，在通車時練習素描。