How can I tell someone how I'm feeling without looking silly or weak?

First off you will never look weak when you tell someone how you feel as it takes a lot of courage to talk to them, plus you aren't keeping your feelings to yourself and shutting everyone else out. You won't be weak by telling someone how you feel you will be strong

Just be honest with your feelings. It's important to voice how you feel because bottling up emotions is bad for your health. I used to do that because I was embarrassed of looking weak, but when I learned to deal with my emotions and realized that it is totally normal to voice them, I felt so much happier and at peace with myself and those around me. We are human, and all humans have weaknesses... No matter how strong we may seem! Just believe in yourself and show how you really feel.

Just be confident enogh to tell them all about your feeling dont afraid of consequences just let them know how u feel if u keep all your within urself u gonna be hurt ...... its hurt .... dont think tht they gonna laugh at you or bully you .... maybe she/her waiting for you ...

Try being assertive and confident; you're more likely to be taken seriously than if you hesitate. :)

Saying what you feel can definitely put yourself in a vulnerable position, this however does not mean you are weak. On the contrary it can convey confidence like nothing else. That said it's important be sure the person you are sharing with is someone who is understanding or invested enough in the relationship. Beyond that, opening up to people is always a risk, just try to be safe and if it goes wrong learn from what happened so it's better next time. As to actual techniques in communication, try saying things in a way that cannot be denied or argued. For example, "I feel bad when you treat me this way, and I don't want to feel that way about you because you are important to me." That might seem cheesy or not fit the situation well, but hopefully you get the idea.

Be open and honest with them about how you feel and explain why you feel the way that you are feeling

Be honest! A lot of the time, you may feel as if you look silly and weak whereas in fact it's just you feeling like that, whereas in reality you don't look silly and weak. In fact, your friend (or whoever) that you've told about your feelings is likely wanting to support you, and respecting you for you being to tell them about your personal feelings. An exception to this may be if you talk about your feelings with someone who's emotional abusive, or doesn't understand and makes no effort to, or who's unkind. In this case, if they tell you that you look silly or weak or make you feel that way then they are being disrespectful, and talking to someone else is probably a better option. Talking about your feelings is often relieving and better than keeping it all within.

I self talk first that I am just as good as the person(s) I am speaking to and should have equal respect as a human being.

Showing or expressing how you feel isnt a weakness it shows alot about someone if they are willing to ask for help

just know that every human being is unique and you can always have any kind of opinion about anything their is nothing wrong in having a opinion which is totally different from general notions.Be confident of whatever you feel.