If you don't yet have a photo on your online dating profile, it's time to do so. As obvious as it is, having a photo on your profile, can dramatically increase interest and messages. You'll communicate with and meet more people.
Include your likes and dislikes in your profile, you'll help eliminate people who are not compatible to begin with. More chances to meet a compatible match.
Take the extra time to complete your profile. If you don't have the time. Make it your goal, to fill out small portions of your profile, whenever you have the chance, until your profile is completed.
Beware of money scams. Never send funds or give out your bank account number!
Only meet at a safe public place where people are present!
Always try to arrive slightly early when meeting. If you have to be late, notify your date that you won't be on time as a matter of courtesy.