Location is a quiet giveaway, because different bugs favor different territory. Ticks like warm, moist, tucked-away spots where they can attach undisturbed, and rashes from tick bites often appear in places such as the armpit, the groin, or the back of the knee, though a tick can bite anywhere it finds skin. Those folded, easy-to-miss areas are worth a deliberate check after you have been outside.
The other biters have their own preferences. Fleas concentrate around the ankles and lower legs, which makes sense given they tend to come up from the floor or from pets. Chiggers cluster where clothing presses against skin, so think sock lines, waistbands, and the soft creases of the body. Mosquitoes and bedbugs go for exposed skin you leave uncovered.
When you suspect a tick, it helps to look beyond the obvious. Run a hand along your hairline, behind your ears and knees, under bra straps and waistbands, and through skin folds. Ticks are small, and they choose hiding spots for a reason.