text: Some are sincere, some are not.  You have to use your judgement.  Talk to them for a bit first, you'll get to know somewhat their personalities.  If they seem OK, then agree to meet him in a public place.  On line dating is risky but can be fun!  I've been using Yahoo personals for a while and have met some wonderful guys, and have had some, well, interesting ones as well lol.  Trust your instincts!!!  And good luck!