Interested in a girl? That's great! Here are 10 common mistakes guys make (in no particular order) when they're interested in a woman, that actually guarantees she won't be interested in you back:

1. Catcalling of any kind.

"Hey! I know! I'll just yell at that hot girl walking across the street that she's gorgeous and I think we could have beautiful sex!" No, no, no, what are you doing? Not only is catcalling sexist, rude, and straight-up misogynistic, but it's also super scary! Yelling at a women you've never met isn't going to make her want to sleep with you, it's going to make her want to run away.

2. Touching them without their permission.

Infringing on someone's personal space bubble is a huge no-no... Pretty sure they teach you that in preschool from day one. You wouldn't want someone touching you without your permission, so why would she? It's always better to ask her first then making a move that could make her feel super uncomfortable.

3. Starting off a conversation/sexual encounter with them by saying: "Blow me", "suck me off", or "do you give good head?"

Here's a little secret, dudes, listen up: Many women don't get sexual pleasure out of giving you head. If you want to sexually interact with a women, whether it be initiated in-person or through an app like "Tinder", don't start by straight-up asking her to give you head, it should be something that is mutually pleasurable for both of you.

4. "Sit on my face."

Why do guys think this is a cute thing to say to a woman? If you think she's attractive or you want to sexually interact with her, just tell her so. This is just a confusing phrase that is a straight-up gross image.

5. Bragging about your dick size.

So you have a big penis! Great! Shut up! Just like nobody wants to hear people brag about how pretty they are, nobody wants to hear you brag about your private parts.. Because frankly, we do not care.

6. Trying to convince her to have sex with you after she already said no.

This cannot be stressed harshly enough: NO MEANS NO!!! If she says no once, it doesn't mean try to ask her in a different way to get her to say yes. Sex involves high levels of emotional and physical commitment, and it is exhausting... A person has every right to say no whenever they want, regardless of any circumstances. You rephrasing the question, or bribing her, or begging her, or using any other tactic is wrong.

7. Sending her unsolicited pics of your penis.

No, sending a woman a picture of your penis isn't going to make her more likely to sleep with you. They're called "private parts" for a reason, unless she's definitely interested in seeing it, meaning she told you a definite "yes," leave it in your pants.

8. Having a Tinder profile with mostly pictures of your car, pet, cartoon, or group pictures where we can't discern who you are.

Nobody wants to hookup or meet someone when they have no idea what they look like because it is totally sketchy. Your profile might say you're 24, but you could actually be 67 and nobody knows because you don't have a picture. Nobody wants to take a chance on that.

9. "I really have a thing for (insert "type" of girl here)."

Telling a girl you're interested in her because you "have a thing" for overweight, short, certain minorities, etc. makes her feel like an object. There's more to a woman that specific quality that turns you on. It's objectifying to say you're only interested in her for a specific quality.

10. Calling yourself a "nice guy".

In my experience, the guys who actually are "nice guys", don't need to label themselves that way. Trying to convince a girl to take a chance on you because you're "nice" doesn't make you seem nice, it makes you seem sleazy and creepy.

Don't be creepy, and don't try too hard. Honestly, if you're interested in a girl just be polite. Ask her on a date, be friendly, see where things go. You're chances are 1000 percent better if you do that instead of screaming at her from across the street, acting like a creep.