1. Sorry to interrupt, but... 2. Excuse me – could I talk to you for a minute? / do you have a minute? (when interrupting a conversation between two other people, to talk to one of them) 3. Could I jump in here? (use this when interrupting a discussion among many people) 4. Sorry – I just want to say that... 5. (formal) May I have a word?
Before you plunge into something headfirst, remember that enthusiasm needs to be tempered with wisdom. Look over every aspect of the job, and allow yourself amplepondering time so that you can be sure that every detail is accomplished on time and accurately.