2) Just because someone watches Tim & Eric doesn't mean you should sleep with them.
3) You may think someone likes you and then he will disappear from your life without any notice. You may later bump into him at a beer festival where he will literally run away from you. Literally. Run.
4) Shoes say a lot about a person. For example, stay away from anyone who is still wearing Etnies at age 27.
5) Don't date someone just because they have good taste in music. That person may or may not still be married. You can find out on Facebook.
6) If a guy tells you he is bi-sexual and then says, "just kidding!" assume that he is not just kidding.
There are plenty more lessons I could teach you, but I think I might have to start charging a fee.