If it is just casual dating it may not be worth risking the friendship. What is it you feel for your friend; is it just chemistry or do you feel there is more to it than that?

You might want to discuss what will happen if the relationship doesn't work out before you get together - you are friends you should treat each other with honesty and respect. Treat them like a boyfriend or girlfriend: make the effort to put things on a romantic footing so that you make the most of your new relationship.

Maybe the girl who dated your best friend always had a special place in your heart, and you silently loved her from a distance. In the movies, reunions often bring love that lasts happily ever after. Have you run into that old friend and felt something brewing between the two of you underneath the surface?

If any of these scenarios fit the bill, you certainly aren't alone. Maybe your high school or college reunion is coming up, and you are already imagining getting reacquainted with a certain someone. Do you have one particular friend that you simply can't get off of your mind?

Plant the seed One reason a guy might get stuck in the “friend zone” is because the girl simply has no clue he’s interested in her.

And if he’s the type of guy who doesn’t date much or talk openly about his dating life, she may not see you as being particularly interested in dating women at all.

When it works, it's fantastic, you have similar values, you have a lot in common, you understand each other, and it's why you were friends in the first place.

Sometimes we don't want to risk the friendship, but if you are both interested, and want a relationship, why not give it a go? One of your good friends might just be Mr or Mrs Right.

If a relationship with an old friend is in the future, will it happen without a little push? Maybe this infatuation or interest has gone on for several years, even a decade or more. While of course you certainly don't want to be labeled a stalker, there really isn't anything wrong with looking up old friends.

Once you've made contact, however, you can get a better feel about just how welcome your reintroduction into his or her life might be.

Because they were friends the risk and impact of rejection is much higher.

At the other end of things, if the relationship doesn't work, particularly if it ends badly, you run the risk of ruining the friendship. Look for the signs very carefully as they're probably less obvious with a friend.

Where do you begin looking for old friends and acquaintances?