(1) Report to the leading office or ask for instructions, and make a quick decision. For too long, it may make people feel that the relationship between the two is very close.
(2) In public occasions, whether talking or entertaining, don't stay with the leader for too long, otherwise it will easily attract the attention and suspicion of others.
If you take the same commute route as the leader, you should reduce the number of commuting together. If the leader gives you a lift, you should politely refuse.
(2) Don't be too close to the leader. Between the same sex, no matter how easy-going your leader is, even if he doesn't mind at all, don't have intimate behavior with him. This is the strongest evidence of your intimate relationship. Between the opposite sex, don't be intimate with the leader, it will leave an ambiguous impression on others.
(3) Reduce the number of jokes with leaders. At the right time and place, it doesn't hurt to play a joke on the leader. But often joking with the leader will make people feel that your relationship is unusual.
(4) Try not to appear in the private life of the leader. Some leaders like to let their subordinates do some private affairs for themselves. If you promise to do it, you will not only sacrifice your time, but also arouse the suspicion of your colleagues. Of course, if you refuse, you may wipe the face of the leader. Therefore, there is really no suitable excuse. You can help once or twice occasionally, but if you do too much, you must try to politely refuse.