Yes, and...is a mindset. This card is in the Task + Me category. This means it is meant to help an individual get more focused on (Task) and be more productive in a group collaboration setting. This card simply asks one to reflect on whether or not they are focused on building on others ideas or blocking them. Ask your teammates for feedback about how well you are doing this?
Yes, and...is also a skill. In order to get in the habit of building rather than blocking, one must practice this in groups. A great way to practice this in groups is to spend specific time only building on ideas that have already been generated. This is also a great opportunity to practice the habit of sharing ideas and creativity in a group. A great idea can only be great after it has been through this process, and for all of those out there that believe they have all the great ideas, this is great practice in service of breaking that false belief.