I see people here are starting to get comfortable and post pictures of themselves in here.
There's dangerous people out there who scan everyone's posts using bots. They're blocked when found by admins, but you never know where your stuff is gonna end up online.
If you're comfortable posting pictures of yourself then go ahead, just remember not to include any personally identifiable landmarks like street names and numbers, license plates, company names or IDs.
Assume the fediverse can be hacked and scanned. Assume nazis will sooner or later scan your posts and put them in a database.
If you need to share personal details with someone, use an encrypted chat app, like signal or Matrix.
Lock your profile so that follows require your explicit approval. Don't let strangers follow you - at the very least, make sure that your followers are not trolls or bots.
(Oh - and don't lewd yourself using your main account, it's bad taste. ? If you're into that, use an alternate account in another server - there are servers out there designed just for that - and put its handle on your profile, and never post public from there.)
Be safe.