I believe it is best to approach the situation immediately by saying something like,”It makes me uncomfortable when you…”.
Perhaps he/she has an explanation, however, by stating how you personally feel about the situation, the individual doesn’t feel that you are attacking them directly.
Best to you.
Are they male or female? We all have our own ways of communicating conciously & un-conciously. Try to read the person’s personality, I diffuse alot of unwanted contact with slight humor. Its can be as simple as what u say and how u say it. Body language and direct eye contact are what people look 4 n communications (reply’s), remember that and make sure to convey ur feeling strongly that way. Top it off wit a lil smart [email protected]# humor, not playful, direct, without the uncomfortable body language & c what reaction u get.
If subtle doesn’t work, some only learn from the direct approach. All n all, I feel if you are a professional demand/command that respect from all. The $ is never worth more than my respect.