Word of the week: I don't like the look of this

This week's expression is

I don't like the look of sth/sb

which means I feel a bit uneasy about something or somebody.

Example:

Do you know Tom's new friend, Jerry? I don't like the look of him at all. 

In Spanish we'll say something like 'me da mala espina' or 'no me gusta la pinta de eso'.