Either it was itchy or he got a BONERRR!!
He wants to have a sexual intercourse with you
Either it was an accident or he really likes you.
no
If you mean a blow-job, the same way you get it from a guy. All a blow job is, is a fancy modern name for a person sucking a man's penis.
When a guy asks you to touch his penis it is because it is sexual foreplay which will sexually excite him and this can get you into serious trouble if you do. If you ever feel uncomfortable (no matter how much you love that person) and touching his penis offends you learn to form the word 'no.' If he persists or threatens that if you loved him you would do this for him then he is playing games with you and that is not love. You could well lose not only him, but also your own self respect.
He looks at you, touches you, or talks to you or about you.
When he looks at you and/or talks/touches you a lot.
She likes him.
Touching someone's wrist can convey a sense of intimacy or connection. It could be a sign of flirting or interest, depending on the context and the relationship between the two individuals.
It may very well mean that a drugged guy is looking at you
It means you need to tell your parents.
He wants to have a sexual intercourse with you
It usually means that he wants to have sex with you.
When a guy asks you to go downtown with him, he likely means he would like to spend time with you in a city or urban area. It could involve exploring the city together, going to restaurants, or attending events or activities downtown.
His penis was erect.
Either it was an accident or he really likes you.
The size of a guy's penis when flaccid is not a good indicator of the erect size. Even a penis that looks small when flaccid, can grow to be of very respectable size when erect. Conversely, men who have a penis that looks large when flaccid, generally don't see very much change in actual size when erect.