Keep it on the site
This is one of the most important rules you must follow. If someone asks you to leave the site (no matter how good their reason is) you should refuse. It's much safer to keep your communication within the site. If that person turns out to be abusive or fake they will be removed/banned. Conversations moved to systems such as Facebook, Snapchat, Hangouts don't offer that level of protection.
Never send anyone money
No more details are needed, if someone asks for money block them, they are a fraudster!
Agree to meet in a public place and use your own transport to get to and from your date. Remember to take your mobile phone and make sure it's charged! Tell a friend who you are meeting and where, get them to check up on you.