These may include (but not be limited to) collaborative activities such as mentoring and coaching, side by side teamwork, problem solving, decision-making, brainstorming/ideation, providing feedback, reviewing things together, co-creating things, interviewing, requirements gathering and briefing, ideating, voting/assessing alternatives, having a discussion or debate, planning together.  All these interactions have the potential to create or achieve something - which of these collaborations are most meaningful and important to you?