Write the next sentence in this paragraph:

How to know if a guy is cheating on you
Look for obvious evidence of another woman.
It may seem like a cliche, but finding a smear of lip gloss in a shade you don't wear on his shirt is a good sign that he's cheating. Smelling another woman's perfume on his hair or clothing is another warning sign.

Available options:
1). Remember: this is also a sign that he's trying to get your attention, and so is someone else he may be trying to trick you into thinking is his. Look for an excuse to have your saliva near his mouth..
2). Even if he seemed to completely change, the smell of someone else's perfume might have been one of his other designations. When two women are in a bar, for example, it usually seems like the woman is the one monitoring his bodily hygiene..
3). If you notice a lipstick stain or strange perfume on your boyfriend once, it may just be from a friend or relative, so you shouldn't necessarily worry. However, if it happens more than once, you may have cause for concern..
4). Be aware that some men overdo it when trying to show that they were just in the wrong spot. If his scent is distinctive, that is okay..
3).