Answer:
"Se" is how you know if a verb is reflexive.
Step-by-step explanation:
"Se" is added at the end of a verb, for instance "ducharse". Se speaks of oneself, so ducharse means, to shower one's self. The 'se' is the prononun. So if you say "I shower my body every morning" or something like that, it would be, "Me ducha mi cuerpo cada manana".
Pronouns: me, te, la/le/lo, nos, os, las/les/los.