A useful first message gives someone a small, specific reason to answer. You do not need a special opening line because your match is trans. Start with something they chose to share about themselves.
Use a detail, not a category
If their profile mentions drawing, try: “I noticed you enjoy sketching buildings. Is there a place you would love to draw?” This invites a conversation about their interest. “I have always wanted to try dating a trans person” instead makes the exchange about your experience of a category.
An opener can be two sentences: one observation and one question. Avoid turning it into an interview with five questions or a long autobiography. If the profile contains little detail, offer a choice: “Would your ideal afternoon involve a film, a walk or something else?”
Make the exchange reciprocal
When they answer, contribute something of your own before asking another question. If you do not share their hobby, curiosity is enough; pretending to be an expert gives the conversation a false starting point.
Avoid opening with questions about their body, medical history or previous name. The fact that a profile mentions being trans does not make those topics the purpose of the conversation.
Leave space for a reply
Send your message and continue your day. A delayed answer does not supply enough information to explain what someone feels. Repeated demands for attention create work for the recipient. If there is no response, leave the conversation there rather than contacting them through another account.
A message is an invitation, not an obligation. These examples are suggestions to adapt to your own voice, not scripts that guarantee a reply.
Further reading
Love is respect: understanding personal boundaries. Practical examples above are editorial suggestions, not research findings or guaranteed outcomes.