Is there something you do that could either be seen as sweet

Care too much. Promise to be there for someone....and mean it.....that makes me too involved....crazy....

Writing poems for someone. Lol. It can sound creepy. Or sweet. Depends on the perspective.

When I was 19 the gang and I graffitied the maternity hospital in Dublin.
We did teddies balloons and soothers..
Some people thought it was sweet...
Others took great offence.
I've given up graffiti.. too old now... but I do carry sharpies where ever I go...

Licking or nipping someone's face.
Butt smacks or pinches.
Dancing in the pouring rain.
Walking backwards down the street.
Dressing according to one's sense of fashion.
Talking to oneself. And answering back.

Oh I'm pretty sure if you analyse anybody's behaviour long enough, see how they respond to stress or illness or sadness etc. you could come up with an argument for either case.

No but I can think of my cat lol. My cat since passed away but she liked to bring in mice she caught and would try to feed me. My family didn't like it but I thought it was sweet because it meant she saw me as a big cat lol. And that's the best I love you I'll ever get from a wild animal I think :P

You're eating dinner with them and they have something on their face, so you lick your finger and wipe it off their face.