If you’re not the one making the decision, you still have a place in the decision making process… The place of offering suggestions.
However, when you offer a suggestion – because you’re not the one making the decision – you need to be careful HOW you feel about it. I don’t mean if you feel strongly about it; hopefully you DO feel strongly about it. I mean, are you going to attach emotional consequences to the person, process or plans, if they don’t go along with your idea?
If you’re going to get angry or feel hurt when, after you’ve given your suggestion, they decide something else, then you were attaching emotional consequences to your suggestion. That’s not a real suggestion then is it… It’s more like emotional blackmail.