*this advice is not guaranteed to work. The author is not to blame if senpai does not notice you after following this advice. This advice is untested and may have disastrous side effects such as: being friendzoned, sneezing, coughing, anxiety, awkwardness, headache, pain in the left foot, and in extreme cases, death*

Try being
.
.
.
.
.

'Nice' to Senpai

but then again, that's just a theory (a game theory)