Decide what you actually need to know
“Are they real?” is several questions. Is there a living person behind the account? Are the photos of that person? Are they the age they say? Each has a different check. Work out which ones matter for what you are about to do.
Ask them to verify, and offer to do the same
The most direct check is to ask. On Realr you can send a request for a specific thing, such as a real-person check or verified photos, by link. They do not need an account to open it, and they choose what to share. Offering yours first makes it an exchange rather than a demand.
Check what they send at the source
If someone sends a screenshot of a badge, it proves nothing; screenshots are easy to make. Ask for the link and open it yourself. A real verification is something you can load, not something you are shown.
Be honest about what a check covers
A real-person check shows a live human completed it. A government ID check shows a reviewer matched a face to a document. Neither tells you the person is safe, single or honest. They narrow down who you are dealing with; they do not vouch for behaviour.
Watch what happens when you ask
People who are who they say they are usually agree, or explain what they would rather share instead. Urgency, anger or a sudden reason it is impossible are worth more attention than any badge.
Keep your own plan
Whatever the checks show, meet in public, tell someone where you are going, and do not send money to someone you have not met. Verification is an input to your judgment, not a replacement for it.