Sexually inexperienced...

[MikeW]

How do you know how to do the sexual actions if you have never done them before.

How do you know how to do anything? How to walk, talk, type on a computer?

YOU LEARN BY DOING, trial and error, failure and success.

Your question is too vague. Specifically what is it you don't know how to do?

Do you not know how to give or get a blow job?

Do you not know how to fuck or get fucked?

This is not rocket science. You watch porn online, right? If so, you already have the general idea. Of course you can't know all the specifics until you actually get into a sexual situation with someone where the two of you are hot and horny and WANT to touch one another, make each other feel good. Moreover, not all people are the same in this regard. Some like one thing and not another. For example some guys don't like to kiss or don't like to have their nipples played with or are very sensitive around their testicles so don't like them squeezed, etc. You can't know these things unless they tell you.

Making love is more an art than a science.

So what is it *specifically* you don't know how to do?