How do you know when a guy likes you? how would they act around you?

Depends, do you mean a boy or a man?

@Dibley both I guess

I don’t know really, for men, I guess that they would pay more attention to you than anyone else around, look in your eyes when they talk to you, make you laugh, make you feel like are the only person in the world. If your alone together, he won’t take his eyes off you, listen to your every word, he’ll want to talk about you, wanting to know all about you.

Nervously.

It really depends on what kind of relationship you have with them. But in general, they find a way to show they are interested in you.

I don’t think there are any set answers to this question.
An outgoing guy might show his interest openly and you will know quite quickly, an introverted guy might actually feel a bit nervous in showing interest and might appear on the outside not interested in you, but inwardly is just dying to talk to you.

Idk.. even if they are super introverted, I always just know. It is like the secret seventh sex sense or something.

In general if you see them and hear from them a lot more than usual and perhaps acting or doing goofy stuff and especially if you catch him looking at you a lot…they like you.

As a guy I get very nervous.. I tend to talk a lot, or make obvious facial expressions; ie. blushing. I suppose it depends on what age level you are referring to though. Some are very direct and tell the person how they feel with no problems and some need a little motivation like liquid courage :-)

Is that a frog in your pocket or are you happy to see me? :-)

@Dibley I’ve noticed no difference.

@Zen_Again Spot on.

Any time a guy has liked me, be it a shy one or assertive one- they’ve always come around by me more often then feels ‘comfortable’ for anyone else to be doing. This creates either fun and flirty tension or annoyance depending on if I have interest in return. There’s always a lot of sideways glancing, smirks and sometim awkward small talk.

How I want a guy to let me know he’s interested is to tell me he’d like to ask me on a date if I’m available. It’s really short, simple and can be done politely enough to where a turndown shouldn’t be a big deal.

I read somewhere (can;t remember where) that men tend to Point themselves toward you if they are interested. Ie: sitting and talking his feet are pointing toward you, or he leans towards you.

Attentive… That is key. Whether it is listening to you, asking questions about you, making themselves available to you by randomly running into you, body language open (no arms crossed, legs crossed, eye contact, etc.) teasing you (giving you a hard time) or telling you directly! If there are MIXED signals, there is ZERO interest other than narcisistic supply and you should RUN,

All of the other answers are true, depending on the individual. You just have to keep an eye out for those of us who understand bodylanguage & psychology well & know how to manipulate their signals.