@monorail oh! that's an easy one
panic and follow, decide that was too fast and unfollow, then follow again because that probably gives the wrong idea too, then think about the situation periodically for the next two decades
@monorail on a more useful note, honestly, it's probably fine to follow!
even if it might come-off as for the wrong reason, they probably won't think much about it in like a week
even if they do wonder, they'll probably look at your profile and see this thread, which would explain everything