Remember, your date is more than a transgender person. If you have strong fetish over transgender people, or you have some unrealized fantasy about them, there is nothing wrong with that. However, with this interest, you can easily fall in to the materialized trap.
When a day ends, the existence of this person is not only for your own gratification. Therefore, when they suspect you for only seeing them as a sexual tool and when they leave you, don’t be surprised. Try your best to treat in the way they deserve, that is, they are human-beings and they have their own thinking and plans.
Just like dating everyone else, if you know their needs, they are more likely to satisfy yours, unless your date materializes you as well and they are not interested in anything deep. Try to get to know them, know their personalities, merits and demerits, etc. This will also help you get more prepared for the next “tranny date”.
Get to know your partner, not just the whole transgender thing, but as a human-being, unless you know it is only a one-time thing.
Accept that you will be judged because you are ts dating a transgender person. If you have dated for a transgender person for long enough, they will want to meet your friends and family eventually. Declining such request would leave them an impression that you are ashamed of them and the fact that you are dating them.
Therefore, prepared for the outcome that comes after. For example, if you are a man dating a transgender woman, some uneducated people might misunderstand you as a homosexual, because in their recognition, you are not dating a woman, you are still dating a man. In such circumstance, who cares? Let them think that way. Being attracted by a transgender woman is no different than being attracted to a cisgender woman. You must have the courage to respect that.
However, in some culture of some country and society, there might be much severer consequences. Dating a transgender woman might result in you being severely judged and treated in the same way they treat and judge a transgender person. Sometimes you might even be threatened with life danger. Under this situation, you have to take measures to protect yourself and the person next to you. Unfortunately, the world does not lack trans-phobia.
Balance your choices and if one day you find yourself being judged for it, you shouldn’t blame your partner for it. This is not their fault. They don’t deserve this.
Accept that their body might be altered. Maybe you like the way their body are and you cannot imagine why they want to change that. You might think by telling them how good their body are, they might consider quit surgery, How cute! However, this situation hardly occurs. If you are dating one of them and subtly hoping to prevent them changing their body, you might be stopping them from becoming their true self without even realizing it.
Most transgender people have anxiety over their body. This means most of them would want to change that. If you are in love with one of them, learn to let go and let them be their selves.