what do you do when you run out of things to talk about?

It depends who I'm with; I have a quick mind, and so it's hard for me to run out of things to talk about if I'm with someone who is also mentally quick; but if i'm with someone who is very quiet and shy, I can be quiet and shy myself. I'll just accept the silences. They don't have to be awkward. In time something will come into my head. If the silences are tense, I'll tolerate them. I'll try to lighten the mood. Make jokes, try and be pleasant. Often, the atmosphere will improve.

I guess this is normal when you run out of things to talk to with your partner especially when you had said it all. In the first quarter of the relationship with my boyfriend, I feel shy to talk to or introduce a topic. But now we are used to it.

Yes it can be hard, I have this problem when I go visit an elderly neighbour of mine in a Nursing Home, we don't have a lot in common so it is very hard to keep the conversation going..

You do what Depeche Mode say: Enjoy the silence. Talking all the time is insufferable, even if you love the person who's doing it. I once sat and listened to my lady talk for 6 hours, non-stop: she never bores me but my ears hurt afterwards. Silence exists for a reason. Enjoy it, enjoy the quiet moment, enjoy just being, enjoy not hearing someone babble on and on, enjoy the fact that the world makes sounds that aren't being drowned out by the constant noise of your own voice. Or, more seriously, don't worry about it. Silences are normal.

The longer my wife and I are together the less we talk. The closer you grow together the less you need to say. If you haven't been together long then yes you need to talk. Why not ask about some of the things that you've always wondered about your partner? Then too there's always things you probably haven't shared with your partner for whatever reason. Confess something that's a little embarrassing. Ask your partner not to laugh first. They will anyway, but you're supposed to say that. You'll have one less secret held back, and your partner will feel that they know something not everyone knows.