hey guys, i go to tesco everyday to do my grocery and there is a staff member who is always looking at me. and yesterday when i asked his colleague if they had garlic sauce, the colleague asked him and then they checked at the place where they keep other stuff and everything. while his colleague was checking he asked why i wanted it, for a pizza or something and i said that i just wanted it to have it just in case. anyway they gave another thing. i said thank you and when i left they were talking and laughing and looking at me. can u tell me whats wrong, cuz im american and i have no idea how british ppl brain works. thank you