in the profile, there are comics recommended by us. now, my question is : how to recomend a comic wihout favoriting it?

You can't. The comic must be faved first.

Or you can just make hrefs
Or image urls.

what you mean?

I think what bbr means is that you could just link to the comic in the text area of your profile. BBCode works in profiles, so it would be

{url=http://drunkduck.com/Comic_Name}Comic Name{/url}{/code}

Or you could make it a picture link

{url=http://drunkduck.com/Comic_Name}{img}http://something.com/image.jpg{/img}{/url}

Just replace the curly brackets } { with straight brackets ] [

Or you could make a custom homepage and if you know how to make a link in plain old HTML, just do that instead.

Hey, now that there's a tutorial it shouldn't be too hard to do that. You do have to know some HTML though.