You can, because reviews in any reputed conference are anonymous. You will not be able to get travel support funds though. That step assumes you have an aca

You can, because reviews in any reputed conference are anonymous. You will not be able to get travel support funds though. That step assumes you have an academic apparatus behind you. What are you interested in? Can you demonstrate expertise in that field? If you can, just email a professor. Most of them, at least the young ones, will be happy to collaborate.