One of the better uses of your time together is for you to give your realtor feedback about what aspects of different properties you like and don’t like and must have and must not have. If the realtor is any good, they will get a sense of your preferences and pick properties that are more likely to be a good fit. Your realtor is likely to ask questions to get a sense of your preferences on some of the more common questions such as size, price range, area of town, etc.
Your realtor probably has in mind a certain number of properties or a certain amount of time to show or give you before he or she is going to start steering you toward making a decision. This is because they don’t get paid for their time until you buy something. My mom, who is a bit of a saint, once showed a high maintenance couple more than 90 properties before they made a decision. Your number is likely to be far less.
I wouldn’t be evasive. The realtor wants to be sure there aren’t barriers to closing a sale, and a surprise could delay or cancel a closing.
Another thing to be aware of, although it affects a seller more, is that it’s generally not worth a realtor’s time to go the last mile when haggling about price. On the seller’s side, for example, the realtor is going to be less interested than the owner in holding out for $10,000 more on a house price, because the chunk that they see is only 2.5–3% of that extra $10,000. Better for them to sell the house for $10,000 less, pocket the commission, and move on.