How can you make your bf notice your upset without actually telling him?

Don't do that. Tell him. Who else can you talk to? Cripes.. Mind games are dumb.

Just don't say much.. He'll get the point and say something.

a lot of guys are dumb and sometimes you just have to tell them. but one way is to change the way you talk to him, he should notice the change and ask you whats wrong and then you can tell him. i do that with my boyfriend and he notices my change right away. or be in front of him, your smile can hide a lot but your eyes cant.

It sounds like you're not mature enough to be in a relationship. (No offence)

change your tone of voice and look sad and then he will ask you,,, if its over the phone just sound sad or start being negtive guys useally get the sence that somthing is wrong

I would just give him the silent treatment for a little bit or just say one word to him in a text or how ever you talk and im sure eventually he will see you arent being the same.

a lot of guys are dumb and sometimes you just have to tell them. but one way is to change the way you talk to him, he should notice the change and ask you whats wrong and then you can tell him. i do that with my boyfriend and he notices my change right away. or be in front of him, your smile can hide a lot but your eyes cant.

The whole point of a relationship is to able to share feelings. Most of the time the best way to do that is talking. If you can not do that, get therapy ASAP.

Frown a lot Don't talk except for yes or no if he asks you a question. Cry unexpectedly Lay on a couch in the fetal position combine all of the above for maximum results