Dealing with objections or rejections from your customer can be a stressful and challenging aspect of a sales call. However, you can handle them assertively and effectively by following some tips. It is important to not take them personally or get defensive, as they are not about you but about your customer's needs, concerns, or expectations. Additionally, do not argue or interrupt, but rather listen carefully and empathize with their point of view. Acknowledge their feelings and validate their concerns. Moreover, do not give up or agree too quickly, but ask questions to understand the root cause of their objection or rejection and probe for their underlying needs, motivations, or interests. Furthermore, provide evidence, testimonials, or guarantees to support your value proposition and show how your solution can benefit your customer and solve their problem. Finally, if you have addressed their objections or rejections and built trust and value, you can confidently and politely ask for their commitment or suggest a follow-up action.