How do I act when giving my friend space?

We had a fight and we talked it out a lot. She said that she needed space. I'm respecting her decision to have space to herself. I've found things to keep my busy when she isn't around but I don't know how to act when we see each other. It's impossible to avoid her because we have several cles together. I still want to be able to talk to her like we used to before but should I keep it at a minimum? I don't want her to feel worried that she's hurt me so I want to be cheerful around her too but will that be a bad thing? My friend is a wonderful person; she's calm and understanding and easygoing and funny and fun to be around in general. How do I make her feel comfortable? They say absence makes the heart fonder and we've known each other for eight years, so I hope things will work out well over time.