Do not jerk a child by the chin to get him/her to turn their face towards you under the premise of teaching eye contact. That child will then come to my room and jerk my chin in their direction when I eventually (and inevitably) speak to them without making eye contact (we're all a little autistic sometimes. . . ) Now you have that child invading people's space without permission, being rough with others. . . And this child? Is not making eye contact with me, either, so now he/she is grabbing me by the chin while staring over my shoulder while nervously telling me, "Some teachers make you look at them. You have to."
You didn't just teach a pro-social skill. You just put me three steps backwards on the target behavior I was working on (asking for permission to touch/hug/etc.) and made both the child and I uncomfortable.