In addition to the Museo de las Américas happy hour and conversation group, the Denver Spanish Language Meetup group is a great opportunity to practice your Spanish in a social setting. Generally hosted at a member's house, events are usually bimonthly and are an informal gathering of all level (beginner to native speakers) Spanish-speakers who are interested in practicing their Spanish.
Museo de las Américas offers some great programs to practice your Spanish in a fun setting.
Spanish Happy Hour
Every third Friday of the month from 5-8pm, Spanish-speakers of all levels are invited to have a drink and meet other Spanish-speakers. The cost is $3 for Museo members and $5 for general admission.