I can relate to the sweating part. In the past, I sometimes used overnight prescription-strength deodorant before events where I knew I'd start sweating. It was very effective, but I know some of the ingredients can be problematic.

Out of the ones you listed, not asking questions is probably the one most likely to keep you away from making connections with others. As we all know, people love to talk about themselves. I find it helpful to have a few questions in my "mental bank" before interacting with new people just so I don't have to think on the spot.

I was practicing small talk with my husband one day, and I asked him if he likes his job. He was like, "Ickplant, very few people actually like their job. You're either asking them to lie or putting them in an awkward position of bitching about their job to a stranger. It's better to ask what their favorite part is about their job or something similar." That's what inspired me to be more intentional about what I ask.