1. Express clearly: You should be able to express yourself clearly when the boss asks for your advice. At this time, don't pursue simplicity. You should try your best to explain your views in professional language to prove that you really understand the industry trends and customer needs. If you have some customer feedback or sales data to support your point of view, you'd better take it out and analyze it to make it easier for the boss to accept.
2. Humility and respect: Although you may be more experienced and knowledgeable than your boss, you should still show cooperation and respect. You need to listen to your boss's point of view and acknowledge their value, but you should also trust your own judgment. You can take your opinion as a suggestion, not a mandatory guide to action.