how to massage penis with oil

I am really confused about something and hope someone can help. Lately, I have been hearing from friends about erotic massages, and someone mentioned how to massage penis with oil. At first, I thought it was just a joke, but now I’m actually curious. The other night, after a lot of wine, I tried to give myself a little rubdown, but honestly, I didn’t know what I was doing. I just used some coconut oil I had, but it felt kinda awkward, and I wasn’t sure if I should be applying pressure or just going lightly. And are there specific kinds of oil that work better for something like this? I read that some oils can be irritating, so I’m worried about that. I also cant help but wonder if this is actually beneficial or if it’s just a myth like some things I’ve come across on the internet. Is there a technique, like how to massage penis with oil that really works? Also, should I be concerned about any hygiene issues while doing this? I don’t want to end up regretting it, you know? If anyone has actual experience or knowledge, please share. Help a lost guy out!