I admit I haven't read this whole thread. But, first, please don't just look at a man's looks, as was said. Instead, be friendly. Smile. Be interested in what a man is interested in and ask questions. Dress nicely and fix yourself up to be your most attractive.
Go to events you are interested in and you might meet a guy there who is interested in that, too. Common interests are important.
And, by all means, don't come across as needy and clinging! Try to take your single life one day at a time and enjoy your freedom, so to speak. A man can be wonderful, says me, who has been married for almost 30 years, but it takes compromise and adjustments. The single life is less complicated.

Do things with female friends. They are important, too.