First of all Definition 1 of 2Pro Tip 1/3Sequence Starter Use it to introduce the first point in a list or series of thoughts. First of all, let's discuss the company's new policy. Pro Tip 2/3Clarification Cue Signals that you are about to provide vital information or corrections. First of all, the meeting is at 3 PM, not 4 PM. Pro Tip 3/3Attention Grabber Draws listener's focus to the significance of what comes next. First of all, we must address the budget cuts.