Maybe it's because I'm not that heavy of an RPer but people approaching me ICly while I'm OOC doesn't bother me too much. Depending on the situation, I might jump right into IC with them or kindly let them know that I'm currently OOC. With that said, I usually try to ask if someone is IC or OOC before attempting to RP with them, unless it's in one of the main RP hubs, or if I already know them well or something.
