How do I know if someone is interested in me?

Well, it is highly personal. But there are a few signs near universal. Do they ask you a lot of questions in an attempt to get to know you? Do they say good morning and good night? Do they respond to texts quickly and do they ask if you are free to go places? Those are all very good signs of interest, even if only a little.

You could ask them. After all that is the only way to really know. I mean you can try reading body language and grasping for hints here and there, but these are not always accurate. So at least by asking you can be 100% sure.

Ooo this one is a bit tough! It is very specific to the person! Many people show so many different ways that they like someone. Some people may get super quiet, while others may try to get your attention! Try to figure out if the person acts differently around you, than they do around other people! It can be really confusing when your not sure if someone likes you or not, so if you really can't figure it out, you can ask them! If you like them, you could even tell them first and see how they react!!

By their actions, how they treat you and how they react to something that you do. They do stuff that interests you and ask you questions, try to make plans with you.

They look and stare at you and cant keep there eyes off of you. They usually flirt and tell you how beautiful/handsome you are

Generally it is the little things that give it away. Side way glances, making eye contact at random times, an “accidental” touches, etc. Also if it seems like the person is trying to make the effort to talk to you, even if the time is not very convenient for either of you. If you are talking, watch their eyes and nose. If their nose pinks up, or their eyes dilate, that means they are nervous talking to you. So yeah verbal and physical cues are super important in determining if some one is interested in you. Good luck to everybody!

There's no definite way to tell, it depends a lot on the person because everyone acts different around the people that they like. However, a good way to tell is to see if they look or glance at you a lot. Possibly being shy or not talking a lot around you, or maybe talking more than usual when you're around. They might try to hang around you more if they are an outgoing person but some people also like to avoid their crushes because they get nervous, so that really factor really depends on the person.