People are remembered for tiny things: a laugh, a whistle, the way they said your name. Your habits are your signature.

What people retain about you is oddly specific and largely involuntary. Not the opinions or the achievements, but the sound of your laugh in a corridor and the particular way you said hello, because those happened hundreds of times while the bigger things happened once. Your habits do the describing whether you picked them or not.

Notice one thing you do constantly that others would recognise instantly, and ask whether you are glad it is part of the description. Then tell somebody which of their small habits you like. Almost nobody has ever heard that about themselves.