Simple

How do I communicate with sentient species.

That is the easy question. Try something a little more difficult.

Asking how old I am in your time frame is more difficult. But, the answer is the same.

Vision. Seeing the world as other sentients see is much more difficult.

Have you given thought as to why a being would wear a suit in a habitable world. Your atmosphere poses no threat. Nor do your little bugs. The why is only a thought away. My biology is not yours. Your bugs come from your biology. Not mine. The second thought is my genetic modifications. Although I cannot say how many of your centuries I've walked, I can assure you your star system did not exist. Your galaxy was a cluster and not a brilliant spiral. My galaxy was also much different. If it exists still.

I wear a suit for other reasons. All of them relate to my technology.

Your world and your vision relies on your white star. As you see it. I do not remember my own star, but it was likely white. Now use some imagination. What would you see if your star was red. Or blue. Would it still be white.

Did you know many other sentients would not see your star as white. Some may see the green, others would need technology to view it. Just as you need technology to view other stars. A wide view of the energy spectrum would allow you to see more stars than you can imagine.

My suit allows me to change the spectrum of what I see. And protects me from the more energetic spectrums.

Most sentients communicate with vision. Vision to them. Some use air pressure as vision. Very few use the high energy spectrum.

For human speech, I have translators in my suit. I will offer you a translator. Sometime. A suit. Maybe.

What is the translator. Technology that lives. It may resemble an insect that crawls into your auditory canal. It will assimilate with you. Though not without mild discomfort for a short time. I assume.

There is another way to study a sentient species. I have developed a better technology. Open your eyes.