Being single and meeting people in Pueblo isn't something that is natural. The same South, East, Central and County cliques still exist years after high school is over. Many people have never left town, therefore have never had to experience the difficulties of making new friends or finding a potential girlfriend or boyfriend without the assistance of their life long inner circle.
One of my favorite reasons for traveling or getting out of town is that I can walk into a bar where nobody knows my name, what I do, or who I am "suppose" to be. I don't recommend stretching your profession from janitor to doctor, but breaking out of your own stereotypes on occasion is something very healthy. If you look like Homer Simpson and are trying to pull off George Clooney, that may not fly, but not having to be the shy girl because that's what all your friends expect is an easy transition in a new bar where you are free to be whoever you want to be. It also promotes meeting new people and practicing your conversation skills, something that nearly everyone in Pueblo could afford to sharpen up on.
Happy Hour at new and unknown bar is the perfect time and place to branch out of comfort zone and talk to strangers without the connotations of a pick up. Buying someone a drink is only going to set you back $2 instead of $8 and your chances of striking up a conversation with someone who has been drinking for the past 5 hours is statistically less. The Happy Hour crowd is usually at a bar to have a couple of drinks after work and generally are more open to conversation than the "going clubbing crowd". Sure, you may find the drunk since noon guy attempting to pay for his drink with pocket lint, nickles and dimes, but for the most part the happy hour crowd is a good bunch.
My suggestion, pick a random happy hour bar from the LISTINGS section, invite a friend, leave the attitude at home, strike up a conversation with a stranger, buy a round cheap happy hour drinks, and maybe you'll end up making a new friend. At a minimum you'll leave the bar with a fresh experience and a good buzz.