Dress neatly, which shows your sincerity to worship Buddha;
When you enter the temple, you should salute the monks and call them big monks. Don't shout loudly, but feel awe; Since we are here to worship Buddha, not to have fun, we should be careful. Bowing down, different buddhas and temples may be different, and burning incense may be different. You can ask a monk or a temple.
Don't take pictures in temples, especially the face of Buddha, which is a big taboo; No foul language;
Ask for a sign, shake it, even if it's not a good sign, don't be angry. Generally speaking, I can read the signs, but I can solve them myself. It is best to ask monks or temples to cancel the sign and listen to them. If they don't speak well, they just laugh it off. There's no need to get angry.
You can take a walk in front of the temple. When you enter some secluded or forbidden places, you should stop or ask the monk. It doesn't hurt to ask.
You can talk to the monk. Please feel free. It's okay.
In a word, there seem to be many rules in the ritual Buddha. In fact, as long as you are sincere, the rules are outside your heart and don't hinder you.