I personally, OOCly LOVE interacting with new players to the mud.
And even just new Characters that might be an alt.
My character, however, is sometimes busy. He doesn't mind talking to new people....and as I player I _usually_ make a point to wait around a few moments before I nod politely then be on my way. However, most of the time..especially more recently, (for IG reasons)...it's not terribly in-character for Lachtli to just start up a conversation with some random person. So he'll tarry, wash his face, drink some water, then if there's no sign of like (someone's afk or something, which is understandable), I'm outta there for the moment.
Fortunately, or unfortunately, sometimes you have to be extremely patient to really get some good RP with certain chars. You have to love them up a little bit first to get them to go dere