Ask every person he's ever dated, ever.
Honestly, there's no 100% accurate way to find out if someone is a virgin, guy or girl, unless you ask them. (Even then, there is the chance that they'll lie about it, but one would hope such a person would be trustworthy!)
If it's very important to find out, just asking them is best.
yes
There's no physical change, so you'll have to trust his answer.
no, there are many virgins out there
by asking them or asking them question a non virgin should no
If your asking if he's still a virgin then no he is not a virgin.
You could try asking him, in a friendly kind of way.
No
Try some free dating advice e-books, You can definitely find good tips if you wanna find a good guy for a relationship or watch some good romantic movies you can gets a lots of good romantic ideas for asking a guy out.
He tells you.
Nick Jonas is a virgin. He has a purity ring. If that's what you're asking.
YES!!! As long as a girl and a guy have sex a girl can get pregnant. It doesn't matter if their both virgins, if the guy is a virgin and the girl isn't, if the girl is a virgin and the guy isn't, or if neither of them is a virgin. As long as you have sex you can get pregnant. I recommend birth control and condoms if your planning on having sex and don't want to become pregnant.
Yes this is a man who has not had sex. Depending on your difinition, a gay guy who never has sex with a woman would always be a virgin.