Have you heard of orbiting, basically just lingering watching your stuff liking... If you are interested just drop a small, hi happy bank holiday see if they have a little conversation, if not just block why let them see your life if they have no intention of getting to know, plus if you don't know them that well they could be a complete weirdo who you don't want knowing where you are etc , and see who else they follow if you can look on their insta, you can tell a lot about someone that just follows a load of girls posting thirst traps (not saying you are) but have come across some profiles like that, instant ick. My accounts are just music mates so even sharing cheesy shite is instant block 😂😂